A DeltaChannel with no version at the checkpoint was never written, so it
is empty. channels_from_checkpoint still asked the saver for its history,
and with no snapshot to stop at the walk read every ancestor of the thread
on every load. On SQLite that fails outright once a thread has about 32k
checkpoints: stage 2 binds one variable per ancestor. Only channels with a
version are walked now.
Bumps [urllib3](https://github.com/urllib3/urllib3) from 2.7.0 to 2.8.0.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/urllib3/urllib3/releases">urllib3's
releases</a>.</em></p>
<blockquote>
<h2>2.8.0</h2>
<h2>🚀 urllib3 is fundraising for HTTP/2 support</h2>
<p><a
href="https://sethmlarson.dev/urllib3-is-fundraising-for-http2-support">urllib3
is raising ~$40,000 USD</a> to release HTTP/2 support and ensure
long-term sustainable maintenance of the project. If your company or
organization uses Python and would benefit from HTTP/2 support in
Requests, pip, cloud SDKs, and thousands of other projects <a
href="https://opencollective.com/urllib3">please consider contributing
financially</a> to ensure HTTP/2 support is developed sustainably and
maintained for the long-haul.</p>
<p>Thank you for your support.</p>
<h2>Security</h2>
<p>Fixed the following security issues:</p>
<ul>
<li>The TLS configuration for HTTPS proxies could be ignored or
overridden. (High severity, GHSA-8988-9cw3-xx77)</li>
<li><code>HTTPResponse.stream()</code> and <code>read_chunked()</code>
could buffer a chunk-size line of unbounded length in memory. (High
severity, GHSA-vxq7-64xx-v4gw)</li>
<li>Chunked Deflate streaming could enter an infinite loop. (Medium
severity, GHSA-gh4c-6fx4-qh6g)</li>
</ul>
<blockquote>
<p>[!IMPORTANT]
urllib3 2.8.0 fixes HTTPS proxy TLS configuration being ignored or
overridden by destination settings. Configurations relying on that
behavior may require changes.</p>
<p>Configure proxy CA certificates and client certificates in
<code>proxy_ssl_context</code>, and proxy identity checks with
<code>proxy_assert_hostname</code> or
<code>proxy_assert_fingerprint</code>. Destination client certificates
and identity overrides no longer apply to HTTPS forwarding proxy
connections.</p>
</blockquote>
<blockquote>
<p>[!NOTE]
CVE IDs had not yet been assigned to these advisories at the time of
release due to a backlog at GitHub's CNA.</p>
</blockquote>
<h2>Deprecations & Removals</h2>
<ul>
<li>Deprecated using an empty collection as the <code>Retry</code>
option <code>allowed_methods</code> to retry any verb. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5044">#5044</a>)</li>
</ul>
<h2>Features</h2>
<ul>
<li>Added <code>Url.auth_decoded</code> and
<code>Url.auth_decoded_joined</code> convenience properties to the
result of <code>parse_url()</code>. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/4945">#4945</a>)</li>
<li>Added <code>basic_auth_encoding</code> and
<code>proxy_basic_auth_encoding</code> parameters to
<code>urllib3.util.make_headers()</code>. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5092">#5092</a>)</li>
</ul>
<h2>Bugfixes</h2>
<ul>
<li>
<p>Fixed response header handling to replace obsolete folded header
lines (<code>obs-fold</code>) with spaces in accordance with RFC 9112,
preventing raw CRLF sequences from appearing in header values such as
<code>Set-Cookie</code>. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/1362">#1362</a>)</p>
</li>
<li>
<p>Fixed usage of <code>proxy_ssl_context</code> with
<code>ProxyManager</code> when
<code>use_forwarding_for_https=True</code>. Passing
<code>ssl_context</code> instead of <code>proxy_ssl_context</code> for
HTTPS proxies in this configuration now emits a
<code>FutureWarning</code> and will raise an error in v3.0. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/2577">#2577</a>)</p>
</li>
<li>
<p>Changed behavior of the default <code>ConnectionPool.pool</code>
initialization. <code>LifoQueue</code> is now resolved from the
<code>queue</code> module after the <code>ConnectionPool</code> is
instantiated instead of using the default cached <code>QueueCls</code>
class property. This is done because sometimes the
<code>queue.LifoQueue</code> is monkey-patched late in the program, such
as by gevent. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/3289">#3289</a>)</p>
</li>
<li>
<p>Raised <code>UnrewindableBodyError</code> instead of
<code>ValueError</code> when retrying a request whose body had
<code>tell()</code> but not <code>seek()</code>. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/3779">#3779</a>)</p>
</li>
<li>
<p>Decoded percent-encoded SOCKS proxy credentials before authenticating
with the proxy server. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/3785">#3785</a>)</p>
</li>
<li>
<p>Fixed <code>HTTPResponse.drain_conn()</code> to discard unread
response data in 64 KiB chunks (same as the default <code>amt</code>
when doing <code>HTTPResponse.stream(...)</code>). (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5019">#5019</a>)</p>
</li>
<li>
<p>Fixed <code>is_ipaddress()</code> to detect non-standard IPv4 forms
accepted by <code>socket.connect</code>, such as hex
(<code>0x7f000001</code>), octal (<code>0177.0.0.1</code>), and decimal
integers (<code>2130706433</code>), ensuring SSL certificate
verification uses the correct mode for these addresses. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5029">#5029</a>)</p>
</li>
<li>
<p>Fixed <code>HTTPConnectionPool.urlopen</code> raising a misleading
<code>FullPoolError</code> instead of <code>ValueError</code> when
called with an invalid <code>timeout</code> argument on a pool created
with <code>block=True</code>. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5059">#5059</a>)</p>
</li>
<li>
<p>Fixed port-zero handling to preserve explicit <code>:0</code> values
instead of substituting the default ports 80 or 443 in URL parsing, pool
selection, proxy configuration, <code>connection_from_url()</code>, and
HTTP/2 request authority. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5071">#5071</a>,
<a
href="https://redirect.github.com/urllib3/urllib3/issues/5101">#5101</a>)</p>
</li>
<li>
<p>Fixed a bug where <code>PoolManager</code> passed the
<code>assert_hostname</code> and <code>assert_fingerprint</code>
parameters to HTTP connection pools. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5077">#5077</a>)</p>
</li>
<li>
<p>Fixed <code>HTTPConnectionPool.urlopen()</code> and HTTP proxy
forwarding to strip URL fragments from absolute request targets before
sending requests. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5079">#5079</a>)</p>
</li>
<li>
<p>Added safeguards to the proxy tunneling code to prevent potential
security issues when handling invalid characters in the proxy host and
HTTP headers. This change affects users of Python 3.10, Python 3.11, and
Python 3.12 when the standard library does not contain the fix; those on
newer Python versions should upgrade to 3.13.14+ or 3.14.5+ to get the
same security fixes. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5091">#5091</a>)</p>
</li>
<li>
<p>Fixed <code>HTTPSConnection.connect()</code> overriding
<code>ProxyConfig.ssl_context</code>'s certificate policy and proxy
identity checks with the target connection's TLS settings when
forwarding through an HTTPS proxy.</p>
<p><code>HTTPSConnection</code> no longer applies target SNI,
assertions, or client credentials to forwarding proxy handshakes and
continues to use its <code>ssl_context</code> as a fallback when an
HTTPS proxy forwards an HTTP target. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5093">#5093</a>)</p>
</li>
<li>
<p>Fixed URL parsing to more strictly enforce RFC 3986 host syntax,
rejecting invalid host input such as raw spaces and control characters,
malformed percent-encodings, and percent-encoded control characters in
HTTP(S) hosts and IPv6 zone identifiers, including proxy CONNECT tunnel
targets. Host normalization now also follows RFC 3986 normalization
rules for percent-encoded octets by decoding percent-encoded unreserved
characters and uppercasing the hexadecimal digits of retained
percent-encoded octets. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5095">#5095</a>)</p>
</li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/urllib3/urllib3/blob/main/CHANGES.rst">urllib3's
changelog</a>.</em></p>
<blockquote>
<h1>2.8.0 (2026-09-15)</h1>
<h2>Security</h2>
<p>Fixed the following security issues:</p>
<ul>
<li>The TLS configuration for HTTPS proxies could be ignored or
overridden.
(High severity, <code>GHSA-8988-9cw3-xx77
<https://github.com/urllib3/urllib3/security/advisories/GHSA-8988-9cw3-xx77></code>__)</li>
<li><code>HTTPResponse.stream()</code> and <code>read_chunked()</code>
could buffer a chunk-size
line of unbounded length in memory. (High severity,
<code>GHSA-vxq7-64xx-v4gw
<https://github.com/urllib3/urllib3/security/advisories/GHSA-vxq7-64xx-v4gw></code>__)</li>
<li>Chunked Deflate streaming could enter an infinite loop. (Medium
severity,
<code>GHSA-gh4c-6fx4-qh6g
<https://github.com/urllib3/urllib3/security/advisories/GHSA-gh4c-6fx4-qh6g></code>__)</li>
</ul>
<p>.. caution::</p>
<pre><code>urllib3 2.8.0 fixes HTTPS proxy TLS configuration being
ignored or
overridden by destination settings. Configurations relying on that
behavior may require changes.
<p>Configure proxy CA certificates and client certificates in
<code>proxy_ssl_context</code>, and proxy identity checks with
<code>proxy_assert_hostname</code> or
<code>proxy_assert_fingerprint</code>.
Destination client certificates and identity overrides no longer
apply to HTTPS forwarding proxy connections.
</code></pre></p>
<h2>Deprecations & Removals</h2>
<ul>
<li>Deprecated using an empty collection as the <code>Retry</code>
option
<code>allowed_methods</code> to retry any verb.
(<code>[#5044](https://github.com/urllib3/urllib3/issues/5044)
<https://github.com/urllib3/urllib3/issues/5044></code>__)</li>
</ul>
<h2>Features</h2>
<ul>
<li>Added <code>Url.auth_decoded</code> and
<code>Url.auth_decoded_joined</code> convenience
properties to the result of <code>parse_url()</code>.
(<code>[#4945](https://github.com/urllib3/urllib3/issues/4945)
<https://github.com/urllib3/urllib3/issues/4945></code>__)</li>
<li>Added <code>basic_auth_encoding</code> and
<code>proxy_basic_auth_encoding</code> parameters to
<code>urllib3.util.make_headers()</code>.
(<code>[#5092](https://github.com/urllib3/urllib3/issues/5092)
<https://github.com/urllib3/urllib3/issues/5092></code>__)</li>
</ul>
<h2>Bugfixes</h2>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/urllib3/urllib3/commit/b1d30ab61fe0db8f11092805e8c5ac43e091064a"><code>b1d30ab</code></a>
Release 2.8.0</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/9016d7e8afc68185496ef07f3c3a4a743d04922e"><code>9016d7e</code></a>
Skip <code>test_read_chunked_with_trailing_data_does_not_hang</code> for
brotlicffi (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5258">#5258</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/9101f581a8b3659af23b6ff335ae77200ca33533"><code>9101f58</code></a>
Fix <code>nox -s docs</code> warning (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5256">#5256</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/cd770b059b543be29298ea5c52afb0b1b090f5ed"><code>cd770b0</code></a>
Merge commit from fork</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/ea2ad7b21a80da3632f80016526a18864586077f"><code>ea2ad7b</code></a>
Merge commit from fork</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/0716e31534345dc1599ea95d903c79f276239bd8"><code>0716e31</code></a>
Fix loading unencrypted client keys with a password in pyOpenSSL (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5255">#5255</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/43c68c8b43a9dcb44ed2cf4ec91384ca0d46b37d"><code>43c68c8</code></a>
Test pickling of <code>InvalidChunkLength</code> (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5247">#5247</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/308b279b3fb28e7bee952e152ec5baeb5bfd0817"><code>308b279</code></a>
Share security policy between GitHub and Read the Docs (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5253">#5253</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/53fa0731b27d4b71ab0755ea5b896422d005d706"><code>53fa073</code></a>
Add policy on duplicate pull requests (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5252">#5252</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/5f2a6a843d0100d1351c3f94d58581ca98d17267"><code>5f2a6a8</code></a>
Assert on the ALPN extension in test_tunnel_sets_http_11_alpn (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5232">#5232</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/urllib3/urllib3/compare/2.7.0...2.8.0">compare
view</a></li>
</ul>
</details>
<br />
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Dependabot will resolve any conflicts with this PR as long as you don't
alter it yourself. You can also trigger a rebase manually by commenting
`@dependabot rebase`.
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<br />
You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
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Bumps [urllib3](https://github.com/urllib3/urllib3) from 2.7.0 to 2.8.0.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/urllib3/urllib3/releases">urllib3's
releases</a>.</em></p>
<blockquote>
<h2>2.8.0</h2>
<h2>🚀 urllib3 is fundraising for HTTP/2 support</h2>
<p><a
href="https://sethmlarson.dev/urllib3-is-fundraising-for-http2-support">urllib3
is raising ~$40,000 USD</a> to release HTTP/2 support and ensure
long-term sustainable maintenance of the project. If your company or
organization uses Python and would benefit from HTTP/2 support in
Requests, pip, cloud SDKs, and thousands of other projects <a
href="https://opencollective.com/urllib3">please consider contributing
financially</a> to ensure HTTP/2 support is developed sustainably and
maintained for the long-haul.</p>
<p>Thank you for your support.</p>
<h2>Security</h2>
<p>Fixed the following security issues:</p>
<ul>
<li>The TLS configuration for HTTPS proxies could be ignored or
overridden. (High severity, GHSA-8988-9cw3-xx77)</li>
<li><code>HTTPResponse.stream()</code> and <code>read_chunked()</code>
could buffer a chunk-size line of unbounded length in memory. (High
severity, GHSA-vxq7-64xx-v4gw)</li>
<li>Chunked Deflate streaming could enter an infinite loop. (Medium
severity, GHSA-gh4c-6fx4-qh6g)</li>
</ul>
<blockquote>
<p>[!IMPORTANT]
urllib3 2.8.0 fixes HTTPS proxy TLS configuration being ignored or
overridden by destination settings. Configurations relying on that
behavior may require changes.</p>
<p>Configure proxy CA certificates and client certificates in
<code>proxy_ssl_context</code>, and proxy identity checks with
<code>proxy_assert_hostname</code> or
<code>proxy_assert_fingerprint</code>. Destination client certificates
and identity overrides no longer apply to HTTPS forwarding proxy
connections.</p>
</blockquote>
<blockquote>
<p>[!NOTE]
CVE IDs had not yet been assigned to these advisories at the time of
release due to a backlog at GitHub's CNA.</p>
</blockquote>
<h2>Deprecations & Removals</h2>
<ul>
<li>Deprecated using an empty collection as the <code>Retry</code>
option <code>allowed_methods</code> to retry any verb. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5044">#5044</a>)</li>
</ul>
<h2>Features</h2>
<ul>
<li>Added <code>Url.auth_decoded</code> and
<code>Url.auth_decoded_joined</code> convenience properties to the
result of <code>parse_url()</code>. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/4945">#4945</a>)</li>
<li>Added <code>basic_auth_encoding</code> and
<code>proxy_basic_auth_encoding</code> parameters to
<code>urllib3.util.make_headers()</code>. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5092">#5092</a>)</li>
</ul>
<h2>Bugfixes</h2>
<ul>
<li>
<p>Fixed response header handling to replace obsolete folded header
lines (<code>obs-fold</code>) with spaces in accordance with RFC 9112,
preventing raw CRLF sequences from appearing in header values such as
<code>Set-Cookie</code>. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/1362">#1362</a>)</p>
</li>
<li>
<p>Fixed usage of <code>proxy_ssl_context</code> with
<code>ProxyManager</code> when
<code>use_forwarding_for_https=True</code>. Passing
<code>ssl_context</code> instead of <code>proxy_ssl_context</code> for
HTTPS proxies in this configuration now emits a
<code>FutureWarning</code> and will raise an error in v3.0. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/2577">#2577</a>)</p>
</li>
<li>
<p>Changed behavior of the default <code>ConnectionPool.pool</code>
initialization. <code>LifoQueue</code> is now resolved from the
<code>queue</code> module after the <code>ConnectionPool</code> is
instantiated instead of using the default cached <code>QueueCls</code>
class property. This is done because sometimes the
<code>queue.LifoQueue</code> is monkey-patched late in the program, such
as by gevent. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/3289">#3289</a>)</p>
</li>
<li>
<p>Raised <code>UnrewindableBodyError</code> instead of
<code>ValueError</code> when retrying a request whose body had
<code>tell()</code> but not <code>seek()</code>. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/3779">#3779</a>)</p>
</li>
<li>
<p>Decoded percent-encoded SOCKS proxy credentials before authenticating
with the proxy server. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/3785">#3785</a>)</p>
</li>
<li>
<p>Fixed <code>HTTPResponse.drain_conn()</code> to discard unread
response data in 64 KiB chunks (same as the default <code>amt</code>
when doing <code>HTTPResponse.stream(...)</code>). (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5019">#5019</a>)</p>
</li>
<li>
<p>Fixed <code>is_ipaddress()</code> to detect non-standard IPv4 forms
accepted by <code>socket.connect</code>, such as hex
(<code>0x7f000001</code>), octal (<code>0177.0.0.1</code>), and decimal
integers (<code>2130706433</code>), ensuring SSL certificate
verification uses the correct mode for these addresses. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5029">#5029</a>)</p>
</li>
<li>
<p>Fixed <code>HTTPConnectionPool.urlopen</code> raising a misleading
<code>FullPoolError</code> instead of <code>ValueError</code> when
called with an invalid <code>timeout</code> argument on a pool created
with <code>block=True</code>. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5059">#5059</a>)</p>
</li>
<li>
<p>Fixed port-zero handling to preserve explicit <code>:0</code> values
instead of substituting the default ports 80 or 443 in URL parsing, pool
selection, proxy configuration, <code>connection_from_url()</code>, and
HTTP/2 request authority. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5071">#5071</a>,
<a
href="https://redirect.github.com/urllib3/urllib3/issues/5101">#5101</a>)</p>
</li>
<li>
<p>Fixed a bug where <code>PoolManager</code> passed the
<code>assert_hostname</code> and <code>assert_fingerprint</code>
parameters to HTTP connection pools. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5077">#5077</a>)</p>
</li>
<li>
<p>Fixed <code>HTTPConnectionPool.urlopen()</code> and HTTP proxy
forwarding to strip URL fragments from absolute request targets before
sending requests. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5079">#5079</a>)</p>
</li>
<li>
<p>Added safeguards to the proxy tunneling code to prevent potential
security issues when handling invalid characters in the proxy host and
HTTP headers. This change affects users of Python 3.10, Python 3.11, and
Python 3.12 when the standard library does not contain the fix; those on
newer Python versions should upgrade to 3.13.14+ or 3.14.5+ to get the
same security fixes. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5091">#5091</a>)</p>
</li>
<li>
<p>Fixed <code>HTTPSConnection.connect()</code> overriding
<code>ProxyConfig.ssl_context</code>'s certificate policy and proxy
identity checks with the target connection's TLS settings when
forwarding through an HTTPS proxy.</p>
<p><code>HTTPSConnection</code> no longer applies target SNI,
assertions, or client credentials to forwarding proxy handshakes and
continues to use its <code>ssl_context</code> as a fallback when an
HTTPS proxy forwards an HTTP target. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5093">#5093</a>)</p>
</li>
<li>
<p>Fixed URL parsing to more strictly enforce RFC 3986 host syntax,
rejecting invalid host input such as raw spaces and control characters,
malformed percent-encodings, and percent-encoded control characters in
HTTP(S) hosts and IPv6 zone identifiers, including proxy CONNECT tunnel
targets. Host normalization now also follows RFC 3986 normalization
rules for percent-encoded octets by decoding percent-encoded unreserved
characters and uppercasing the hexadecimal digits of retained
percent-encoded octets. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5095">#5095</a>)</p>
</li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/urllib3/urllib3/blob/main/CHANGES.rst">urllib3's
changelog</a>.</em></p>
<blockquote>
<h1>2.8.0 (2026-09-15)</h1>
<h2>Security</h2>
<p>Fixed the following security issues:</p>
<ul>
<li>The TLS configuration for HTTPS proxies could be ignored or
overridden.
(High severity, <code>GHSA-8988-9cw3-xx77
<https://github.com/urllib3/urllib3/security/advisories/GHSA-8988-9cw3-xx77></code>__)</li>
<li><code>HTTPResponse.stream()</code> and <code>read_chunked()</code>
could buffer a chunk-size
line of unbounded length in memory. (High severity,
<code>GHSA-vxq7-64xx-v4gw
<https://github.com/urllib3/urllib3/security/advisories/GHSA-vxq7-64xx-v4gw></code>__)</li>
<li>Chunked Deflate streaming could enter an infinite loop. (Medium
severity,
<code>GHSA-gh4c-6fx4-qh6g
<https://github.com/urllib3/urllib3/security/advisories/GHSA-gh4c-6fx4-qh6g></code>__)</li>
</ul>
<p>.. caution::</p>
<pre><code>urllib3 2.8.0 fixes HTTPS proxy TLS configuration being
ignored or
overridden by destination settings. Configurations relying on that
behavior may require changes.
<p>Configure proxy CA certificates and client certificates in
<code>proxy_ssl_context</code>, and proxy identity checks with
<code>proxy_assert_hostname</code> or
<code>proxy_assert_fingerprint</code>.
Destination client certificates and identity overrides no longer
apply to HTTPS forwarding proxy connections.
</code></pre></p>
<h2>Deprecations & Removals</h2>
<ul>
<li>Deprecated using an empty collection as the <code>Retry</code>
option
<code>allowed_methods</code> to retry any verb.
(<code>[#5044](https://github.com/urllib3/urllib3/issues/5044)
<https://github.com/urllib3/urllib3/issues/5044></code>__)</li>
</ul>
<h2>Features</h2>
<ul>
<li>Added <code>Url.auth_decoded</code> and
<code>Url.auth_decoded_joined</code> convenience
properties to the result of <code>parse_url()</code>.
(<code>[#4945](https://github.com/urllib3/urllib3/issues/4945)
<https://github.com/urllib3/urllib3/issues/4945></code>__)</li>
<li>Added <code>basic_auth_encoding</code> and
<code>proxy_basic_auth_encoding</code> parameters to
<code>urllib3.util.make_headers()</code>.
(<code>[#5092](https://github.com/urllib3/urllib3/issues/5092)
<https://github.com/urllib3/urllib3/issues/5092></code>__)</li>
</ul>
<h2>Bugfixes</h2>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/urllib3/urllib3/commit/b1d30ab61fe0db8f11092805e8c5ac43e091064a"><code>b1d30ab</code></a>
Release 2.8.0</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/9016d7e8afc68185496ef07f3c3a4a743d04922e"><code>9016d7e</code></a>
Skip <code>test_read_chunked_with_trailing_data_does_not_hang</code> for
brotlicffi (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5258">#5258</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/9101f581a8b3659af23b6ff335ae77200ca33533"><code>9101f58</code></a>
Fix <code>nox -s docs</code> warning (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5256">#5256</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/cd770b059b543be29298ea5c52afb0b1b090f5ed"><code>cd770b0</code></a>
Merge commit from fork</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/ea2ad7b21a80da3632f80016526a18864586077f"><code>ea2ad7b</code></a>
Merge commit from fork</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/0716e31534345dc1599ea95d903c79f276239bd8"><code>0716e31</code></a>
Fix loading unencrypted client keys with a password in pyOpenSSL (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5255">#5255</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/43c68c8b43a9dcb44ed2cf4ec91384ca0d46b37d"><code>43c68c8</code></a>
Test pickling of <code>InvalidChunkLength</code> (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5247">#5247</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/308b279b3fb28e7bee952e152ec5baeb5bfd0817"><code>308b279</code></a>
Share security policy between GitHub and Read the Docs (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5253">#5253</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/53fa0731b27d4b71ab0755ea5b896422d005d706"><code>53fa073</code></a>
Add policy on duplicate pull requests (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5252">#5252</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/5f2a6a843d0100d1351c3f94d58581ca98d17267"><code>5f2a6a8</code></a>
Assert on the ALPN extension in test_tunnel_sets_http_11_alpn (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5232">#5232</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/urllib3/urllib3/compare/2.7.0...2.8.0">compare
view</a></li>
</ul>
</details>
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Bumps [urllib3](https://github.com/urllib3/urllib3) from 2.7.0 to 2.8.0.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/urllib3/urllib3/releases">urllib3's
releases</a>.</em></p>
<blockquote>
<h2>2.8.0</h2>
<h2>🚀 urllib3 is fundraising for HTTP/2 support</h2>
<p><a
href="https://sethmlarson.dev/urllib3-is-fundraising-for-http2-support">urllib3
is raising ~$40,000 USD</a> to release HTTP/2 support and ensure
long-term sustainable maintenance of the project. If your company or
organization uses Python and would benefit from HTTP/2 support in
Requests, pip, cloud SDKs, and thousands of other projects <a
href="https://opencollective.com/urllib3">please consider contributing
financially</a> to ensure HTTP/2 support is developed sustainably and
maintained for the long-haul.</p>
<p>Thank you for your support.</p>
<h2>Security</h2>
<p>Fixed the following security issues:</p>
<ul>
<li>The TLS configuration for HTTPS proxies could be ignored or
overridden. (High severity, GHSA-8988-9cw3-xx77)</li>
<li><code>HTTPResponse.stream()</code> and <code>read_chunked()</code>
could buffer a chunk-size line of unbounded length in memory. (High
severity, GHSA-vxq7-64xx-v4gw)</li>
<li>Chunked Deflate streaming could enter an infinite loop. (Medium
severity, GHSA-gh4c-6fx4-qh6g)</li>
</ul>
<blockquote>
<p>[!IMPORTANT]
urllib3 2.8.0 fixes HTTPS proxy TLS configuration being ignored or
overridden by destination settings. Configurations relying on that
behavior may require changes.</p>
<p>Configure proxy CA certificates and client certificates in
<code>proxy_ssl_context</code>, and proxy identity checks with
<code>proxy_assert_hostname</code> or
<code>proxy_assert_fingerprint</code>. Destination client certificates
and identity overrides no longer apply to HTTPS forwarding proxy
connections.</p>
</blockquote>
<blockquote>
<p>[!NOTE]
CVE IDs had not yet been assigned to these advisories at the time of
release due to a backlog at GitHub's CNA.</p>
</blockquote>
<h2>Deprecations & Removals</h2>
<ul>
<li>Deprecated using an empty collection as the <code>Retry</code>
option <code>allowed_methods</code> to retry any verb. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5044">#5044</a>)</li>
</ul>
<h2>Features</h2>
<ul>
<li>Added <code>Url.auth_decoded</code> and
<code>Url.auth_decoded_joined</code> convenience properties to the
result of <code>parse_url()</code>. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/4945">#4945</a>)</li>
<li>Added <code>basic_auth_encoding</code> and
<code>proxy_basic_auth_encoding</code> parameters to
<code>urllib3.util.make_headers()</code>. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5092">#5092</a>)</li>
</ul>
<h2>Bugfixes</h2>
<ul>
<li>
<p>Fixed response header handling to replace obsolete folded header
lines (<code>obs-fold</code>) with spaces in accordance with RFC 9112,
preventing raw CRLF sequences from appearing in header values such as
<code>Set-Cookie</code>. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/1362">#1362</a>)</p>
</li>
<li>
<p>Fixed usage of <code>proxy_ssl_context</code> with
<code>ProxyManager</code> when
<code>use_forwarding_for_https=True</code>. Passing
<code>ssl_context</code> instead of <code>proxy_ssl_context</code> for
HTTPS proxies in this configuration now emits a
<code>FutureWarning</code> and will raise an error in v3.0. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/2577">#2577</a>)</p>
</li>
<li>
<p>Changed behavior of the default <code>ConnectionPool.pool</code>
initialization. <code>LifoQueue</code> is now resolved from the
<code>queue</code> module after the <code>ConnectionPool</code> is
instantiated instead of using the default cached <code>QueueCls</code>
class property. This is done because sometimes the
<code>queue.LifoQueue</code> is monkey-patched late in the program, such
as by gevent. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/3289">#3289</a>)</p>
</li>
<li>
<p>Raised <code>UnrewindableBodyError</code> instead of
<code>ValueError</code> when retrying a request whose body had
<code>tell()</code> but not <code>seek()</code>. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/3779">#3779</a>)</p>
</li>
<li>
<p>Decoded percent-encoded SOCKS proxy credentials before authenticating
with the proxy server. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/3785">#3785</a>)</p>
</li>
<li>
<p>Fixed <code>HTTPResponse.drain_conn()</code> to discard unread
response data in 64 KiB chunks (same as the default <code>amt</code>
when doing <code>HTTPResponse.stream(...)</code>). (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5019">#5019</a>)</p>
</li>
<li>
<p>Fixed <code>is_ipaddress()</code> to detect non-standard IPv4 forms
accepted by <code>socket.connect</code>, such as hex
(<code>0x7f000001</code>), octal (<code>0177.0.0.1</code>), and decimal
integers (<code>2130706433</code>), ensuring SSL certificate
verification uses the correct mode for these addresses. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5029">#5029</a>)</p>
</li>
<li>
<p>Fixed <code>HTTPConnectionPool.urlopen</code> raising a misleading
<code>FullPoolError</code> instead of <code>ValueError</code> when
called with an invalid <code>timeout</code> argument on a pool created
with <code>block=True</code>. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5059">#5059</a>)</p>
</li>
<li>
<p>Fixed port-zero handling to preserve explicit <code>:0</code> values
instead of substituting the default ports 80 or 443 in URL parsing, pool
selection, proxy configuration, <code>connection_from_url()</code>, and
HTTP/2 request authority. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5071">#5071</a>,
<a
href="https://redirect.github.com/urllib3/urllib3/issues/5101">#5101</a>)</p>
</li>
<li>
<p>Fixed a bug where <code>PoolManager</code> passed the
<code>assert_hostname</code> and <code>assert_fingerprint</code>
parameters to HTTP connection pools. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5077">#5077</a>)</p>
</li>
<li>
<p>Fixed <code>HTTPConnectionPool.urlopen()</code> and HTTP proxy
forwarding to strip URL fragments from absolute request targets before
sending requests. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5079">#5079</a>)</p>
</li>
<li>
<p>Added safeguards to the proxy tunneling code to prevent potential
security issues when handling invalid characters in the proxy host and
HTTP headers. This change affects users of Python 3.10, Python 3.11, and
Python 3.12 when the standard library does not contain the fix; those on
newer Python versions should upgrade to 3.13.14+ or 3.14.5+ to get the
same security fixes. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5091">#5091</a>)</p>
</li>
<li>
<p>Fixed <code>HTTPSConnection.connect()</code> overriding
<code>ProxyConfig.ssl_context</code>'s certificate policy and proxy
identity checks with the target connection's TLS settings when
forwarding through an HTTPS proxy.</p>
<p><code>HTTPSConnection</code> no longer applies target SNI,
assertions, or client credentials to forwarding proxy handshakes and
continues to use its <code>ssl_context</code> as a fallback when an
HTTPS proxy forwards an HTTP target. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5093">#5093</a>)</p>
</li>
<li>
<p>Fixed URL parsing to more strictly enforce RFC 3986 host syntax,
rejecting invalid host input such as raw spaces and control characters,
malformed percent-encodings, and percent-encoded control characters in
HTTP(S) hosts and IPv6 zone identifiers, including proxy CONNECT tunnel
targets. Host normalization now also follows RFC 3986 normalization
rules for percent-encoded octets by decoding percent-encoded unreserved
characters and uppercasing the hexadecimal digits of retained
percent-encoded octets. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5095">#5095</a>)</p>
</li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/urllib3/urllib3/blob/main/CHANGES.rst">urllib3's
changelog</a>.</em></p>
<blockquote>
<h1>2.8.0 (2026-09-15)</h1>
<h2>Security</h2>
<p>Fixed the following security issues:</p>
<ul>
<li>The TLS configuration for HTTPS proxies could be ignored or
overridden.
(High severity, <code>GHSA-8988-9cw3-xx77
<https://github.com/urllib3/urllib3/security/advisories/GHSA-8988-9cw3-xx77></code>__)</li>
<li><code>HTTPResponse.stream()</code> and <code>read_chunked()</code>
could buffer a chunk-size
line of unbounded length in memory. (High severity,
<code>GHSA-vxq7-64xx-v4gw
<https://github.com/urllib3/urllib3/security/advisories/GHSA-vxq7-64xx-v4gw></code>__)</li>
<li>Chunked Deflate streaming could enter an infinite loop. (Medium
severity,
<code>GHSA-gh4c-6fx4-qh6g
<https://github.com/urllib3/urllib3/security/advisories/GHSA-gh4c-6fx4-qh6g></code>__)</li>
</ul>
<p>.. caution::</p>
<pre><code>urllib3 2.8.0 fixes HTTPS proxy TLS configuration being
ignored or
overridden by destination settings. Configurations relying on that
behavior may require changes.
<p>Configure proxy CA certificates and client certificates in
<code>proxy_ssl_context</code>, and proxy identity checks with
<code>proxy_assert_hostname</code> or
<code>proxy_assert_fingerprint</code>.
Destination client certificates and identity overrides no longer
apply to HTTPS forwarding proxy connections.
</code></pre></p>
<h2>Deprecations & Removals</h2>
<ul>
<li>Deprecated using an empty collection as the <code>Retry</code>
option
<code>allowed_methods</code> to retry any verb.
(<code>[#5044](https://github.com/urllib3/urllib3/issues/5044)
<https://github.com/urllib3/urllib3/issues/5044></code>__)</li>
</ul>
<h2>Features</h2>
<ul>
<li>Added <code>Url.auth_decoded</code> and
<code>Url.auth_decoded_joined</code> convenience
properties to the result of <code>parse_url()</code>.
(<code>[#4945](https://github.com/urllib3/urllib3/issues/4945)
<https://github.com/urllib3/urllib3/issues/4945></code>__)</li>
<li>Added <code>basic_auth_encoding</code> and
<code>proxy_basic_auth_encoding</code> parameters to
<code>urllib3.util.make_headers()</code>.
(<code>[#5092](https://github.com/urllib3/urllib3/issues/5092)
<https://github.com/urllib3/urllib3/issues/5092></code>__)</li>
</ul>
<h2>Bugfixes</h2>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/urllib3/urllib3/commit/b1d30ab61fe0db8f11092805e8c5ac43e091064a"><code>b1d30ab</code></a>
Release 2.8.0</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/9016d7e8afc68185496ef07f3c3a4a743d04922e"><code>9016d7e</code></a>
Skip <code>test_read_chunked_with_trailing_data_does_not_hang</code> for
brotlicffi (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5258">#5258</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/9101f581a8b3659af23b6ff335ae77200ca33533"><code>9101f58</code></a>
Fix <code>nox -s docs</code> warning (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5256">#5256</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/cd770b059b543be29298ea5c52afb0b1b090f5ed"><code>cd770b0</code></a>
Merge commit from fork</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/ea2ad7b21a80da3632f80016526a18864586077f"><code>ea2ad7b</code></a>
Merge commit from fork</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/0716e31534345dc1599ea95d903c79f276239bd8"><code>0716e31</code></a>
Fix loading unencrypted client keys with a password in pyOpenSSL (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5255">#5255</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/43c68c8b43a9dcb44ed2cf4ec91384ca0d46b37d"><code>43c68c8</code></a>
Test pickling of <code>InvalidChunkLength</code> (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5247">#5247</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/308b279b3fb28e7bee952e152ec5baeb5bfd0817"><code>308b279</code></a>
Share security policy between GitHub and Read the Docs (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5253">#5253</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/53fa0731b27d4b71ab0755ea5b896422d005d706"><code>53fa073</code></a>
Add policy on duplicate pull requests (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5252">#5252</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/5f2a6a843d0100d1351c3f94d58581ca98d17267"><code>5f2a6a8</code></a>
Assert on the ALPN extension in test_tunnel_sets_http_11_alpn (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5232">#5232</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/urllib3/urllib3/compare/2.7.0...2.8.0">compare
view</a></li>
</ul>
</details>
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[](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)
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`@dependabot rebase`.
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You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
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Bumps the uv group with 1 update in the /libs/cli/uv-examples/monorepo
directory: [urllib3](https://github.com/urllib3/urllib3).
Bumps the uv group with 1 update in the /libs/cli/uv-examples/simple
directory: [urllib3](https://github.com/urllib3/urllib3).
Updates `urllib3` from 2.7.0 to 2.8.0
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/urllib3/urllib3/releases">urllib3's
releases</a>.</em></p>
<blockquote>
<h2>2.8.0</h2>
<h2>🚀 urllib3 is fundraising for HTTP/2 support</h2>
<p><a
href="https://sethmlarson.dev/urllib3-is-fundraising-for-http2-support">urllib3
is raising ~$40,000 USD</a> to release HTTP/2 support and ensure
long-term sustainable maintenance of the project. If your company or
organization uses Python and would benefit from HTTP/2 support in
Requests, pip, cloud SDKs, and thousands of other projects <a
href="https://opencollective.com/urllib3">please consider contributing
financially</a> to ensure HTTP/2 support is developed sustainably and
maintained for the long-haul.</p>
<p>Thank you for your support.</p>
<h2>Security</h2>
<p>Fixed the following security issues:</p>
<ul>
<li>The TLS configuration for HTTPS proxies could be ignored or
overridden. (High severity, GHSA-8988-9cw3-xx77)</li>
<li><code>HTTPResponse.stream()</code> and <code>read_chunked()</code>
could buffer a chunk-size line of unbounded length in memory. (High
severity, GHSA-vxq7-64xx-v4gw)</li>
<li>Chunked Deflate streaming could enter an infinite loop. (Medium
severity, GHSA-gh4c-6fx4-qh6g)</li>
</ul>
<blockquote>
<p>[!IMPORTANT]
urllib3 2.8.0 fixes HTTPS proxy TLS configuration being ignored or
overridden by destination settings. Configurations relying on that
behavior may require changes.</p>
<p>Configure proxy CA certificates and client certificates in
<code>proxy_ssl_context</code>, and proxy identity checks with
<code>proxy_assert_hostname</code> or
<code>proxy_assert_fingerprint</code>. Destination client certificates
and identity overrides no longer apply to HTTPS forwarding proxy
connections.</p>
</blockquote>
<blockquote>
<p>[!NOTE]
CVE IDs had not yet been assigned to these advisories at the time of
release due to a backlog at GitHub's CNA.</p>
</blockquote>
<h2>Deprecations & Removals</h2>
<ul>
<li>Deprecated using an empty collection as the <code>Retry</code>
option <code>allowed_methods</code> to retry any verb. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5044">#5044</a>)</li>
</ul>
<h2>Features</h2>
<ul>
<li>Added <code>Url.auth_decoded</code> and
<code>Url.auth_decoded_joined</code> convenience properties to the
result of <code>parse_url()</code>. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/4945">#4945</a>)</li>
<li>Added <code>basic_auth_encoding</code> and
<code>proxy_basic_auth_encoding</code> parameters to
<code>urllib3.util.make_headers()</code>. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5092">#5092</a>)</li>
</ul>
<h2>Bugfixes</h2>
<ul>
<li>
<p>Fixed response header handling to replace obsolete folded header
lines (<code>obs-fold</code>) with spaces in accordance with RFC 9112,
preventing raw CRLF sequences from appearing in header values such as
<code>Set-Cookie</code>. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/1362">#1362</a>)</p>
</li>
<li>
<p>Fixed usage of <code>proxy_ssl_context</code> with
<code>ProxyManager</code> when
<code>use_forwarding_for_https=True</code>. Passing
<code>ssl_context</code> instead of <code>proxy_ssl_context</code> for
HTTPS proxies in this configuration now emits a
<code>FutureWarning</code> and will raise an error in v3.0. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/2577">#2577</a>)</p>
</li>
<li>
<p>Changed behavior of the default <code>ConnectionPool.pool</code>
initialization. <code>LifoQueue</code> is now resolved from the
<code>queue</code> module after the <code>ConnectionPool</code> is
instantiated instead of using the default cached <code>QueueCls</code>
class property. This is done because sometimes the
<code>queue.LifoQueue</code> is monkey-patched late in the program, such
as by gevent. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/3289">#3289</a>)</p>
</li>
<li>
<p>Raised <code>UnrewindableBodyError</code> instead of
<code>ValueError</code> when retrying a request whose body had
<code>tell()</code> but not <code>seek()</code>. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/3779">#3779</a>)</p>
</li>
<li>
<p>Decoded percent-encoded SOCKS proxy credentials before authenticating
with the proxy server. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/3785">#3785</a>)</p>
</li>
<li>
<p>Fixed <code>HTTPResponse.drain_conn()</code> to discard unread
response data in 64 KiB chunks (same as the default <code>amt</code>
when doing <code>HTTPResponse.stream(...)</code>). (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5019">#5019</a>)</p>
</li>
<li>
<p>Fixed <code>is_ipaddress()</code> to detect non-standard IPv4 forms
accepted by <code>socket.connect</code>, such as hex
(<code>0x7f000001</code>), octal (<code>0177.0.0.1</code>), and decimal
integers (<code>2130706433</code>), ensuring SSL certificate
verification uses the correct mode for these addresses. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5029">#5029</a>)</p>
</li>
<li>
<p>Fixed <code>HTTPConnectionPool.urlopen</code> raising a misleading
<code>FullPoolError</code> instead of <code>ValueError</code> when
called with an invalid <code>timeout</code> argument on a pool created
with <code>block=True</code>. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5059">#5059</a>)</p>
</li>
<li>
<p>Fixed port-zero handling to preserve explicit <code>:0</code> values
instead of substituting the default ports 80 or 443 in URL parsing, pool
selection, proxy configuration, <code>connection_from_url()</code>, and
HTTP/2 request authority. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5071">#5071</a>,
<a
href="https://redirect.github.com/urllib3/urllib3/issues/5101">#5101</a>)</p>
</li>
<li>
<p>Fixed a bug where <code>PoolManager</code> passed the
<code>assert_hostname</code> and <code>assert_fingerprint</code>
parameters to HTTP connection pools. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5077">#5077</a>)</p>
</li>
<li>
<p>Fixed <code>HTTPConnectionPool.urlopen()</code> and HTTP proxy
forwarding to strip URL fragments from absolute request targets before
sending requests. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5079">#5079</a>)</p>
</li>
<li>
<p>Added safeguards to the proxy tunneling code to prevent potential
security issues when handling invalid characters in the proxy host and
HTTP headers. This change affects users of Python 3.10, Python 3.11, and
Python 3.12 when the standard library does not contain the fix; those on
newer Python versions should upgrade to 3.13.14+ or 3.14.5+ to get the
same security fixes. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5091">#5091</a>)</p>
</li>
<li>
<p>Fixed <code>HTTPSConnection.connect()</code> overriding
<code>ProxyConfig.ssl_context</code>'s certificate policy and proxy
identity checks with the target connection's TLS settings when
forwarding through an HTTPS proxy.</p>
<p><code>HTTPSConnection</code> no longer applies target SNI,
assertions, or client credentials to forwarding proxy handshakes and
continues to use its <code>ssl_context</code> as a fallback when an
HTTPS proxy forwards an HTTP target. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5093">#5093</a>)</p>
</li>
<li>
<p>Fixed URL parsing to more strictly enforce RFC 3986 host syntax,
rejecting invalid host input such as raw spaces and control characters,
malformed percent-encodings, and percent-encoded control characters in
HTTP(S) hosts and IPv6 zone identifiers, including proxy CONNECT tunnel
targets. Host normalization now also follows RFC 3986 normalization
rules for percent-encoded octets by decoding percent-encoded unreserved
characters and uppercasing the hexadecimal digits of retained
percent-encoded octets. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5095">#5095</a>)</p>
</li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/urllib3/urllib3/blob/main/CHANGES.rst">urllib3's
changelog</a>.</em></p>
<blockquote>
<h1>2.8.0 (2026-09-15)</h1>
<h2>Security</h2>
<p>Fixed the following security issues:</p>
<ul>
<li>The TLS configuration for HTTPS proxies could be ignored or
overridden.
(High severity, <code>GHSA-8988-9cw3-xx77
<https://github.com/urllib3/urllib3/security/advisories/GHSA-8988-9cw3-xx77></code>__)</li>
<li><code>HTTPResponse.stream()</code> and <code>read_chunked()</code>
could buffer a chunk-size
line of unbounded length in memory. (High severity,
<code>GHSA-vxq7-64xx-v4gw
<https://github.com/urllib3/urllib3/security/advisories/GHSA-vxq7-64xx-v4gw></code>__)</li>
<li>Chunked Deflate streaming could enter an infinite loop. (Medium
severity,
<code>GHSA-gh4c-6fx4-qh6g
<https://github.com/urllib3/urllib3/security/advisories/GHSA-gh4c-6fx4-qh6g></code>__)</li>
</ul>
<p>.. caution::</p>
<pre><code>urllib3 2.8.0 fixes HTTPS proxy TLS configuration being
ignored or
overridden by destination settings. Configurations relying on that
behavior may require changes.
<p>Configure proxy CA certificates and client certificates in
<code>proxy_ssl_context</code>, and proxy identity checks with
<code>proxy_assert_hostname</code> or
<code>proxy_assert_fingerprint</code>.
Destination client certificates and identity overrides no longer
apply to HTTPS forwarding proxy connections.
</code></pre></p>
<h2>Deprecations & Removals</h2>
<ul>
<li>Deprecated using an empty collection as the <code>Retry</code>
option
<code>allowed_methods</code> to retry any verb.
(<code>[#5044](https://github.com/urllib3/urllib3/issues/5044)
<https://github.com/urllib3/urllib3/issues/5044></code>__)</li>
</ul>
<h2>Features</h2>
<ul>
<li>Added <code>Url.auth_decoded</code> and
<code>Url.auth_decoded_joined</code> convenience
properties to the result of <code>parse_url()</code>.
(<code>[#4945](https://github.com/urllib3/urllib3/issues/4945)
<https://github.com/urllib3/urllib3/issues/4945></code>__)</li>
<li>Added <code>basic_auth_encoding</code> and
<code>proxy_basic_auth_encoding</code> parameters to
<code>urllib3.util.make_headers()</code>.
(<code>[#5092](https://github.com/urllib3/urllib3/issues/5092)
<https://github.com/urllib3/urllib3/issues/5092></code>__)</li>
</ul>
<h2>Bugfixes</h2>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/urllib3/urllib3/commit/b1d30ab61fe0db8f11092805e8c5ac43e091064a"><code>b1d30ab</code></a>
Release 2.8.0</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/9016d7e8afc68185496ef07f3c3a4a743d04922e"><code>9016d7e</code></a>
Skip <code>test_read_chunked_with_trailing_data_does_not_hang</code> for
brotlicffi (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5258">#5258</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/9101f581a8b3659af23b6ff335ae77200ca33533"><code>9101f58</code></a>
Fix <code>nox -s docs</code> warning (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5256">#5256</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/cd770b059b543be29298ea5c52afb0b1b090f5ed"><code>cd770b0</code></a>
Merge commit from fork</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/ea2ad7b21a80da3632f80016526a18864586077f"><code>ea2ad7b</code></a>
Merge commit from fork</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/0716e31534345dc1599ea95d903c79f276239bd8"><code>0716e31</code></a>
Fix loading unencrypted client keys with a password in pyOpenSSL (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5255">#5255</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/43c68c8b43a9dcb44ed2cf4ec91384ca0d46b37d"><code>43c68c8</code></a>
Test pickling of <code>InvalidChunkLength</code> (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5247">#5247</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/308b279b3fb28e7bee952e152ec5baeb5bfd0817"><code>308b279</code></a>
Share security policy between GitHub and Read the Docs (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5253">#5253</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/53fa0731b27d4b71ab0755ea5b896422d005d706"><code>53fa073</code></a>
Add policy on duplicate pull requests (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5252">#5252</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/5f2a6a843d0100d1351c3f94d58581ca98d17267"><code>5f2a6a8</code></a>
Assert on the ALPN extension in test_tunnel_sets_http_11_alpn (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5232">#5232</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/urllib3/urllib3/compare/2.7.0...2.8.0">compare
view</a></li>
</ul>
</details>
<br />
Updates `urllib3` from 2.7.0 to 2.8.0
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/urllib3/urllib3/releases">urllib3's
releases</a>.</em></p>
<blockquote>
<h2>2.8.0</h2>
<h2>🚀 urllib3 is fundraising for HTTP/2 support</h2>
<p><a
href="https://sethmlarson.dev/urllib3-is-fundraising-for-http2-support">urllib3
is raising ~$40,000 USD</a> to release HTTP/2 support and ensure
long-term sustainable maintenance of the project. If your company or
organization uses Python and would benefit from HTTP/2 support in
Requests, pip, cloud SDKs, and thousands of other projects <a
href="https://opencollective.com/urllib3">please consider contributing
financially</a> to ensure HTTP/2 support is developed sustainably and
maintained for the long-haul.</p>
<p>Thank you for your support.</p>
<h2>Security</h2>
<p>Fixed the following security issues:</p>
<ul>
<li>The TLS configuration for HTTPS proxies could be ignored or
overridden. (High severity, GHSA-8988-9cw3-xx77)</li>
<li><code>HTTPResponse.stream()</code> and <code>read_chunked()</code>
could buffer a chunk-size line of unbounded length in memory. (High
severity, GHSA-vxq7-64xx-v4gw)</li>
<li>Chunked Deflate streaming could enter an infinite loop. (Medium
severity, GHSA-gh4c-6fx4-qh6g)</li>
</ul>
<blockquote>
<p>[!IMPORTANT]
urllib3 2.8.0 fixes HTTPS proxy TLS configuration being ignored or
overridden by destination settings. Configurations relying on that
behavior may require changes.</p>
<p>Configure proxy CA certificates and client certificates in
<code>proxy_ssl_context</code>, and proxy identity checks with
<code>proxy_assert_hostname</code> or
<code>proxy_assert_fingerprint</code>. Destination client certificates
and identity overrides no longer apply to HTTPS forwarding proxy
connections.</p>
</blockquote>
<blockquote>
<p>[!NOTE]
CVE IDs had not yet been assigned to these advisories at the time of
release due to a backlog at GitHub's CNA.</p>
</blockquote>
<h2>Deprecations & Removals</h2>
<ul>
<li>Deprecated using an empty collection as the <code>Retry</code>
option <code>allowed_methods</code> to retry any verb. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5044">#5044</a>)</li>
</ul>
<h2>Features</h2>
<ul>
<li>Added <code>Url.auth_decoded</code> and
<code>Url.auth_decoded_joined</code> convenience properties to the
result of <code>parse_url()</code>. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/4945">#4945</a>)</li>
<li>Added <code>basic_auth_encoding</code> and
<code>proxy_basic_auth_encoding</code> parameters to
<code>urllib3.util.make_headers()</code>. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5092">#5092</a>)</li>
</ul>
<h2>Bugfixes</h2>
<ul>
<li>
<p>Fixed response header handling to replace obsolete folded header
lines (<code>obs-fold</code>) with spaces in accordance with RFC 9112,
preventing raw CRLF sequences from appearing in header values such as
<code>Set-Cookie</code>. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/1362">#1362</a>)</p>
</li>
<li>
<p>Fixed usage of <code>proxy_ssl_context</code> with
<code>ProxyManager</code> when
<code>use_forwarding_for_https=True</code>. Passing
<code>ssl_context</code> instead of <code>proxy_ssl_context</code> for
HTTPS proxies in this configuration now emits a
<code>FutureWarning</code> and will raise an error in v3.0. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/2577">#2577</a>)</p>
</li>
<li>
<p>Changed behavior of the default <code>ConnectionPool.pool</code>
initialization. <code>LifoQueue</code> is now resolved from the
<code>queue</code> module after the <code>ConnectionPool</code> is
instantiated instead of using the default cached <code>QueueCls</code>
class property. This is done because sometimes the
<code>queue.LifoQueue</code> is monkey-patched late in the program, such
as by gevent. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/3289">#3289</a>)</p>
</li>
<li>
<p>Raised <code>UnrewindableBodyError</code> instead of
<code>ValueError</code> when retrying a request whose body had
<code>tell()</code> but not <code>seek()</code>. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/3779">#3779</a>)</p>
</li>
<li>
<p>Decoded percent-encoded SOCKS proxy credentials before authenticating
with the proxy server. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/3785">#3785</a>)</p>
</li>
<li>
<p>Fixed <code>HTTPResponse.drain_conn()</code> to discard unread
response data in 64 KiB chunks (same as the default <code>amt</code>
when doing <code>HTTPResponse.stream(...)</code>). (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5019">#5019</a>)</p>
</li>
<li>
<p>Fixed <code>is_ipaddress()</code> to detect non-standard IPv4 forms
accepted by <code>socket.connect</code>, such as hex
(<code>0x7f000001</code>), octal (<code>0177.0.0.1</code>), and decimal
integers (<code>2130706433</code>), ensuring SSL certificate
verification uses the correct mode for these addresses. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5029">#5029</a>)</p>
</li>
<li>
<p>Fixed <code>HTTPConnectionPool.urlopen</code> raising a misleading
<code>FullPoolError</code> instead of <code>ValueError</code> when
called with an invalid <code>timeout</code> argument on a pool created
with <code>block=True</code>. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5059">#5059</a>)</p>
</li>
<li>
<p>Fixed port-zero handling to preserve explicit <code>:0</code> values
instead of substituting the default ports 80 or 443 in URL parsing, pool
selection, proxy configuration, <code>connection_from_url()</code>, and
HTTP/2 request authority. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5071">#5071</a>,
<a
href="https://redirect.github.com/urllib3/urllib3/issues/5101">#5101</a>)</p>
</li>
<li>
<p>Fixed a bug where <code>PoolManager</code> passed the
<code>assert_hostname</code> and <code>assert_fingerprint</code>
parameters to HTTP connection pools. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5077">#5077</a>)</p>
</li>
<li>
<p>Fixed <code>HTTPConnectionPool.urlopen()</code> and HTTP proxy
forwarding to strip URL fragments from absolute request targets before
sending requests. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5079">#5079</a>)</p>
</li>
<li>
<p>Added safeguards to the proxy tunneling code to prevent potential
security issues when handling invalid characters in the proxy host and
HTTP headers. This change affects users of Python 3.10, Python 3.11, and
Python 3.12 when the standard library does not contain the fix; those on
newer Python versions should upgrade to 3.13.14+ or 3.14.5+ to get the
same security fixes. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5091">#5091</a>)</p>
</li>
<li>
<p>Fixed <code>HTTPSConnection.connect()</code> overriding
<code>ProxyConfig.ssl_context</code>'s certificate policy and proxy
identity checks with the target connection's TLS settings when
forwarding through an HTTPS proxy.</p>
<p><code>HTTPSConnection</code> no longer applies target SNI,
assertions, or client credentials to forwarding proxy handshakes and
continues to use its <code>ssl_context</code> as a fallback when an
HTTPS proxy forwards an HTTP target. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5093">#5093</a>)</p>
</li>
<li>
<p>Fixed URL parsing to more strictly enforce RFC 3986 host syntax,
rejecting invalid host input such as raw spaces and control characters,
malformed percent-encodings, and percent-encoded control characters in
HTTP(S) hosts and IPv6 zone identifiers, including proxy CONNECT tunnel
targets. Host normalization now also follows RFC 3986 normalization
rules for percent-encoded octets by decoding percent-encoded unreserved
characters and uppercasing the hexadecimal digits of retained
percent-encoded octets. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5095">#5095</a>)</p>
</li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/urllib3/urllib3/blob/main/CHANGES.rst">urllib3's
changelog</a>.</em></p>
<blockquote>
<h1>2.8.0 (2026-09-15)</h1>
<h2>Security</h2>
<p>Fixed the following security issues:</p>
<ul>
<li>The TLS configuration for HTTPS proxies could be ignored or
overridden.
(High severity, <code>GHSA-8988-9cw3-xx77
<https://github.com/urllib3/urllib3/security/advisories/GHSA-8988-9cw3-xx77></code>__)</li>
<li><code>HTTPResponse.stream()</code> and <code>read_chunked()</code>
could buffer a chunk-size
line of unbounded length in memory. (High severity,
<code>GHSA-vxq7-64xx-v4gw
<https://github.com/urllib3/urllib3/security/advisories/GHSA-vxq7-64xx-v4gw></code>__)</li>
<li>Chunked Deflate streaming could enter an infinite loop. (Medium
severity,
<code>GHSA-gh4c-6fx4-qh6g
<https://github.com/urllib3/urllib3/security/advisories/GHSA-gh4c-6fx4-qh6g></code>__)</li>
</ul>
<p>.. caution::</p>
<pre><code>urllib3 2.8.0 fixes HTTPS proxy TLS configuration being
ignored or
overridden by destination settings. Configurations relying on that
behavior may require changes.
<p>Configure proxy CA certificates and client certificates in
<code>proxy_ssl_context</code>, and proxy identity checks with
<code>proxy_assert_hostname</code> or
<code>proxy_assert_fingerprint</code>.
Destination client certificates and identity overrides no longer
apply to HTTPS forwarding proxy connections.
</code></pre></p>
<h2>Deprecations & Removals</h2>
<ul>
<li>Deprecated using an empty collection as the <code>Retry</code>
option
<code>allowed_methods</code> to retry any verb.
(<code>[#5044](https://github.com/urllib3/urllib3/issues/5044)
<https://github.com/urllib3/urllib3/issues/5044></code>__)</li>
</ul>
<h2>Features</h2>
<ul>
<li>Added <code>Url.auth_decoded</code> and
<code>Url.auth_decoded_joined</code> convenience
properties to the result of <code>parse_url()</code>.
(<code>[#4945](https://github.com/urllib3/urllib3/issues/4945)
<https://github.com/urllib3/urllib3/issues/4945></code>__)</li>
<li>Added <code>basic_auth_encoding</code> and
<code>proxy_basic_auth_encoding</code> parameters to
<code>urllib3.util.make_headers()</code>.
(<code>[#5092](https://github.com/urllib3/urllib3/issues/5092)
<https://github.com/urllib3/urllib3/issues/5092></code>__)</li>
</ul>
<h2>Bugfixes</h2>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/urllib3/urllib3/commit/b1d30ab61fe0db8f11092805e8c5ac43e091064a"><code>b1d30ab</code></a>
Release 2.8.0</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/9016d7e8afc68185496ef07f3c3a4a743d04922e"><code>9016d7e</code></a>
Skip <code>test_read_chunked_with_trailing_data_does_not_hang</code> for
brotlicffi (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5258">#5258</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/9101f581a8b3659af23b6ff335ae77200ca33533"><code>9101f58</code></a>
Fix <code>nox -s docs</code> warning (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5256">#5256</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/cd770b059b543be29298ea5c52afb0b1b090f5ed"><code>cd770b0</code></a>
Merge commit from fork</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/ea2ad7b21a80da3632f80016526a18864586077f"><code>ea2ad7b</code></a>
Merge commit from fork</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/0716e31534345dc1599ea95d903c79f276239bd8"><code>0716e31</code></a>
Fix loading unencrypted client keys with a password in pyOpenSSL (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5255">#5255</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/43c68c8b43a9dcb44ed2cf4ec91384ca0d46b37d"><code>43c68c8</code></a>
Test pickling of <code>InvalidChunkLength</code> (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5247">#5247</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/308b279b3fb28e7bee952e152ec5baeb5bfd0817"><code>308b279</code></a>
Share security policy between GitHub and Read the Docs (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5253">#5253</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/53fa0731b27d4b71ab0755ea5b896422d005d706"><code>53fa073</code></a>
Add policy on duplicate pull requests (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5252">#5252</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/5f2a6a843d0100d1351c3f94d58581ca98d17267"><code>5f2a6a8</code></a>
Assert on the ALPN extension in test_tunnel_sets_http_11_alpn (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5232">#5232</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/urllib3/urllib3/compare/2.7.0...2.8.0">compare
view</a></li>
</ul>
</details>
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<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/urllib3/urllib3/releases">urllib3's
releases</a>.</em></p>
<blockquote>
<h2>2.8.0</h2>
<h2>🚀 urllib3 is fundraising for HTTP/2 support</h2>
<p><a
href="https://sethmlarson.dev/urllib3-is-fundraising-for-http2-support">urllib3
is raising ~$40,000 USD</a> to release HTTP/2 support and ensure
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financially</a> to ensure HTTP/2 support is developed sustainably and
maintained for the long-haul.</p>
<p>Thank you for your support.</p>
<h2>Security</h2>
<p>Fixed the following security issues:</p>
<ul>
<li>The TLS configuration for HTTPS proxies could be ignored or
overridden. (High severity, GHSA-8988-9cw3-xx77)</li>
<li><code>HTTPResponse.stream()</code> and <code>read_chunked()</code>
could buffer a chunk-size line of unbounded length in memory. (High
severity, GHSA-vxq7-64xx-v4gw)</li>
<li>Chunked Deflate streaming could enter an infinite loop. (Medium
severity, GHSA-gh4c-6fx4-qh6g)</li>
</ul>
<blockquote>
<p>[!IMPORTANT]
urllib3 2.8.0 fixes HTTPS proxy TLS configuration being ignored or
overridden by destination settings. Configurations relying on that
behavior may require changes.</p>
<p>Configure proxy CA certificates and client certificates in
<code>proxy_ssl_context</code>, and proxy identity checks with
<code>proxy_assert_hostname</code> or
<code>proxy_assert_fingerprint</code>. Destination client certificates
and identity overrides no longer apply to HTTPS forwarding proxy
connections.</p>
</blockquote>
<blockquote>
<p>[!NOTE]
CVE IDs had not yet been assigned to these advisories at the time of
release due to a backlog at GitHub's CNA.</p>
</blockquote>
<h2>Deprecations & Removals</h2>
<ul>
<li>Deprecated using an empty collection as the <code>Retry</code>
option <code>allowed_methods</code> to retry any verb. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5044">#5044</a>)</li>
</ul>
<h2>Features</h2>
<ul>
<li>Added <code>Url.auth_decoded</code> and
<code>Url.auth_decoded_joined</code> convenience properties to the
result of <code>parse_url()</code>. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/4945">#4945</a>)</li>
<li>Added <code>basic_auth_encoding</code> and
<code>proxy_basic_auth_encoding</code> parameters to
<code>urllib3.util.make_headers()</code>. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5092">#5092</a>)</li>
</ul>
<h2>Bugfixes</h2>
<ul>
<li>
<p>Fixed response header handling to replace obsolete folded header
lines (<code>obs-fold</code>) with spaces in accordance with RFC 9112,
preventing raw CRLF sequences from appearing in header values such as
<code>Set-Cookie</code>. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/1362">#1362</a>)</p>
</li>
<li>
<p>Fixed usage of <code>proxy_ssl_context</code> with
<code>ProxyManager</code> when
<code>use_forwarding_for_https=True</code>. Passing
<code>ssl_context</code> instead of <code>proxy_ssl_context</code> for
HTTPS proxies in this configuration now emits a
<code>FutureWarning</code> and will raise an error in v3.0. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/2577">#2577</a>)</p>
</li>
<li>
<p>Changed behavior of the default <code>ConnectionPool.pool</code>
initialization. <code>LifoQueue</code> is now resolved from the
<code>queue</code> module after the <code>ConnectionPool</code> is
instantiated instead of using the default cached <code>QueueCls</code>
class property. This is done because sometimes the
<code>queue.LifoQueue</code> is monkey-patched late in the program, such
as by gevent. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/3289">#3289</a>)</p>
</li>
<li>
<p>Raised <code>UnrewindableBodyError</code> instead of
<code>ValueError</code> when retrying a request whose body had
<code>tell()</code> but not <code>seek()</code>. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/3779">#3779</a>)</p>
</li>
<li>
<p>Decoded percent-encoded SOCKS proxy credentials before authenticating
with the proxy server. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/3785">#3785</a>)</p>
</li>
<li>
<p>Fixed <code>HTTPResponse.drain_conn()</code> to discard unread
response data in 64 KiB chunks (same as the default <code>amt</code>
when doing <code>HTTPResponse.stream(...)</code>). (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5019">#5019</a>)</p>
</li>
<li>
<p>Fixed <code>is_ipaddress()</code> to detect non-standard IPv4 forms
accepted by <code>socket.connect</code>, such as hex
(<code>0x7f000001</code>), octal (<code>0177.0.0.1</code>), and decimal
integers (<code>2130706433</code>), ensuring SSL certificate
verification uses the correct mode for these addresses. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5029">#5029</a>)</p>
</li>
<li>
<p>Fixed <code>HTTPConnectionPool.urlopen</code> raising a misleading
<code>FullPoolError</code> instead of <code>ValueError</code> when
called with an invalid <code>timeout</code> argument on a pool created
with <code>block=True</code>. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5059">#5059</a>)</p>
</li>
<li>
<p>Fixed port-zero handling to preserve explicit <code>:0</code> values
instead of substituting the default ports 80 or 443 in URL parsing, pool
selection, proxy configuration, <code>connection_from_url()</code>, and
HTTP/2 request authority. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5071">#5071</a>,
<a
href="https://redirect.github.com/urllib3/urllib3/issues/5101">#5101</a>)</p>
</li>
<li>
<p>Fixed a bug where <code>PoolManager</code> passed the
<code>assert_hostname</code> and <code>assert_fingerprint</code>
parameters to HTTP connection pools. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5077">#5077</a>)</p>
</li>
<li>
<p>Fixed <code>HTTPConnectionPool.urlopen()</code> and HTTP proxy
forwarding to strip URL fragments from absolute request targets before
sending requests. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5079">#5079</a>)</p>
</li>
<li>
<p>Added safeguards to the proxy tunneling code to prevent potential
security issues when handling invalid characters in the proxy host and
HTTP headers. This change affects users of Python 3.10, Python 3.11, and
Python 3.12 when the standard library does not contain the fix; those on
newer Python versions should upgrade to 3.13.14+ or 3.14.5+ to get the
same security fixes. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5091">#5091</a>)</p>
</li>
<li>
<p>Fixed <code>HTTPSConnection.connect()</code> overriding
<code>ProxyConfig.ssl_context</code>'s certificate policy and proxy
identity checks with the target connection's TLS settings when
forwarding through an HTTPS proxy.</p>
<p><code>HTTPSConnection</code> no longer applies target SNI,
assertions, or client credentials to forwarding proxy handshakes and
continues to use its <code>ssl_context</code> as a fallback when an
HTTPS proxy forwards an HTTP target. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5093">#5093</a>)</p>
</li>
<li>
<p>Fixed URL parsing to more strictly enforce RFC 3986 host syntax,
rejecting invalid host input such as raw spaces and control characters,
malformed percent-encodings, and percent-encoded control characters in
HTTP(S) hosts and IPv6 zone identifiers, including proxy CONNECT tunnel
targets. Host normalization now also follows RFC 3986 normalization
rules for percent-encoded octets by decoding percent-encoded unreserved
characters and uppercasing the hexadecimal digits of retained
percent-encoded octets. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5095">#5095</a>)</p>
</li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/urllib3/urllib3/blob/main/CHANGES.rst">urllib3's
changelog</a>.</em></p>
<blockquote>
<h1>2.8.0 (2026-09-15)</h1>
<h2>Security</h2>
<p>Fixed the following security issues:</p>
<ul>
<li>The TLS configuration for HTTPS proxies could be ignored or
overridden.
(High severity, <code>GHSA-8988-9cw3-xx77
<https://github.com/urllib3/urllib3/security/advisories/GHSA-8988-9cw3-xx77></code>__)</li>
<li><code>HTTPResponse.stream()</code> and <code>read_chunked()</code>
could buffer a chunk-size
line of unbounded length in memory. (High severity,
<code>GHSA-vxq7-64xx-v4gw
<https://github.com/urllib3/urllib3/security/advisories/GHSA-vxq7-64xx-v4gw></code>__)</li>
<li>Chunked Deflate streaming could enter an infinite loop. (Medium
severity,
<code>GHSA-gh4c-6fx4-qh6g
<https://github.com/urllib3/urllib3/security/advisories/GHSA-gh4c-6fx4-qh6g></code>__)</li>
</ul>
<p>.. caution::</p>
<pre><code>urllib3 2.8.0 fixes HTTPS proxy TLS configuration being
ignored or
overridden by destination settings. Configurations relying on that
behavior may require changes.
<p>Configure proxy CA certificates and client certificates in
<code>proxy_ssl_context</code>, and proxy identity checks with
<code>proxy_assert_hostname</code> or
<code>proxy_assert_fingerprint</code>.
Destination client certificates and identity overrides no longer
apply to HTTPS forwarding proxy connections.
</code></pre></p>
<h2>Deprecations & Removals</h2>
<ul>
<li>Deprecated using an empty collection as the <code>Retry</code>
option
<code>allowed_methods</code> to retry any verb.
(<code>[#5044](https://github.com/urllib3/urllib3/issues/5044)
<https://github.com/urllib3/urllib3/issues/5044></code>__)</li>
</ul>
<h2>Features</h2>
<ul>
<li>Added <code>Url.auth_decoded</code> and
<code>Url.auth_decoded_joined</code> convenience
properties to the result of <code>parse_url()</code>.
(<code>[#4945](https://github.com/urllib3/urllib3/issues/4945)
<https://github.com/urllib3/urllib3/issues/4945></code>__)</li>
<li>Added <code>basic_auth_encoding</code> and
<code>proxy_basic_auth_encoding</code> parameters to
<code>urllib3.util.make_headers()</code>.
(<code>[#5092](https://github.com/urllib3/urllib3/issues/5092)
<https://github.com/urllib3/urllib3/issues/5092></code>__)</li>
</ul>
<h2>Bugfixes</h2>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/urllib3/urllib3/commit/b1d30ab61fe0db8f11092805e8c5ac43e091064a"><code>b1d30ab</code></a>
Release 2.8.0</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/9016d7e8afc68185496ef07f3c3a4a743d04922e"><code>9016d7e</code></a>
Skip <code>test_read_chunked_with_trailing_data_does_not_hang</code> for
brotlicffi (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5258">#5258</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/9101f581a8b3659af23b6ff335ae77200ca33533"><code>9101f58</code></a>
Fix <code>nox -s docs</code> warning (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5256">#5256</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/cd770b059b543be29298ea5c52afb0b1b090f5ed"><code>cd770b0</code></a>
Merge commit from fork</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/ea2ad7b21a80da3632f80016526a18864586077f"><code>ea2ad7b</code></a>
Merge commit from fork</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/0716e31534345dc1599ea95d903c79f276239bd8"><code>0716e31</code></a>
Fix loading unencrypted client keys with a password in pyOpenSSL (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5255">#5255</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/43c68c8b43a9dcb44ed2cf4ec91384ca0d46b37d"><code>43c68c8</code></a>
Test pickling of <code>InvalidChunkLength</code> (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5247">#5247</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/308b279b3fb28e7bee952e152ec5baeb5bfd0817"><code>308b279</code></a>
Share security policy between GitHub and Read the Docs (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5253">#5253</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/53fa0731b27d4b71ab0755ea5b896422d005d706"><code>53fa073</code></a>
Add policy on duplicate pull requests (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5252">#5252</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/5f2a6a843d0100d1351c3f94d58581ca98d17267"><code>5f2a6a8</code></a>
Assert on the ALPN extension in test_tunnel_sets_http_11_alpn (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5232">#5232</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/urllib3/urllib3/compare/2.7.0...2.8.0">compare
view</a></li>
</ul>
</details>
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Bumps [urllib3](https://github.com/urllib3/urllib3) from 2.7.0 to 2.8.0.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/urllib3/urllib3/releases">urllib3's
releases</a>.</em></p>
<blockquote>
<h2>2.8.0</h2>
<h2>🚀 urllib3 is fundraising for HTTP/2 support</h2>
<p><a
href="https://sethmlarson.dev/urllib3-is-fundraising-for-http2-support">urllib3
is raising ~$40,000 USD</a> to release HTTP/2 support and ensure
long-term sustainable maintenance of the project. If your company or
organization uses Python and would benefit from HTTP/2 support in
Requests, pip, cloud SDKs, and thousands of other projects <a
href="https://opencollective.com/urllib3">please consider contributing
financially</a> to ensure HTTP/2 support is developed sustainably and
maintained for the long-haul.</p>
<p>Thank you for your support.</p>
<h2>Security</h2>
<p>Fixed the following security issues:</p>
<ul>
<li>The TLS configuration for HTTPS proxies could be ignored or
overridden. (High severity, GHSA-8988-9cw3-xx77)</li>
<li><code>HTTPResponse.stream()</code> and <code>read_chunked()</code>
could buffer a chunk-size line of unbounded length in memory. (High
severity, GHSA-vxq7-64xx-v4gw)</li>
<li>Chunked Deflate streaming could enter an infinite loop. (Medium
severity, GHSA-gh4c-6fx4-qh6g)</li>
</ul>
<blockquote>
<p>[!IMPORTANT]
urllib3 2.8.0 fixes HTTPS proxy TLS configuration being ignored or
overridden by destination settings. Configurations relying on that
behavior may require changes.</p>
<p>Configure proxy CA certificates and client certificates in
<code>proxy_ssl_context</code>, and proxy identity checks with
<code>proxy_assert_hostname</code> or
<code>proxy_assert_fingerprint</code>. Destination client certificates
and identity overrides no longer apply to HTTPS forwarding proxy
connections.</p>
</blockquote>
<blockquote>
<p>[!NOTE]
CVE IDs had not yet been assigned to these advisories at the time of
release due to a backlog at GitHub's CNA.</p>
</blockquote>
<h2>Deprecations & Removals</h2>
<ul>
<li>Deprecated using an empty collection as the <code>Retry</code>
option <code>allowed_methods</code> to retry any verb. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5044">#5044</a>)</li>
</ul>
<h2>Features</h2>
<ul>
<li>Added <code>Url.auth_decoded</code> and
<code>Url.auth_decoded_joined</code> convenience properties to the
result of <code>parse_url()</code>. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/4945">#4945</a>)</li>
<li>Added <code>basic_auth_encoding</code> and
<code>proxy_basic_auth_encoding</code> parameters to
<code>urllib3.util.make_headers()</code>. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5092">#5092</a>)</li>
</ul>
<h2>Bugfixes</h2>
<ul>
<li>
<p>Fixed response header handling to replace obsolete folded header
lines (<code>obs-fold</code>) with spaces in accordance with RFC 9112,
preventing raw CRLF sequences from appearing in header values such as
<code>Set-Cookie</code>. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/1362">#1362</a>)</p>
</li>
<li>
<p>Fixed usage of <code>proxy_ssl_context</code> with
<code>ProxyManager</code> when
<code>use_forwarding_for_https=True</code>. Passing
<code>ssl_context</code> instead of <code>proxy_ssl_context</code> for
HTTPS proxies in this configuration now emits a
<code>FutureWarning</code> and will raise an error in v3.0. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/2577">#2577</a>)</p>
</li>
<li>
<p>Changed behavior of the default <code>ConnectionPool.pool</code>
initialization. <code>LifoQueue</code> is now resolved from the
<code>queue</code> module after the <code>ConnectionPool</code> is
instantiated instead of using the default cached <code>QueueCls</code>
class property. This is done because sometimes the
<code>queue.LifoQueue</code> is monkey-patched late in the program, such
as by gevent. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/3289">#3289</a>)</p>
</li>
<li>
<p>Raised <code>UnrewindableBodyError</code> instead of
<code>ValueError</code> when retrying a request whose body had
<code>tell()</code> but not <code>seek()</code>. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/3779">#3779</a>)</p>
</li>
<li>
<p>Decoded percent-encoded SOCKS proxy credentials before authenticating
with the proxy server. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/3785">#3785</a>)</p>
</li>
<li>
<p>Fixed <code>HTTPResponse.drain_conn()</code> to discard unread
response data in 64 KiB chunks (same as the default <code>amt</code>
when doing <code>HTTPResponse.stream(...)</code>). (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5019">#5019</a>)</p>
</li>
<li>
<p>Fixed <code>is_ipaddress()</code> to detect non-standard IPv4 forms
accepted by <code>socket.connect</code>, such as hex
(<code>0x7f000001</code>), octal (<code>0177.0.0.1</code>), and decimal
integers (<code>2130706433</code>), ensuring SSL certificate
verification uses the correct mode for these addresses. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5029">#5029</a>)</p>
</li>
<li>
<p>Fixed <code>HTTPConnectionPool.urlopen</code> raising a misleading
<code>FullPoolError</code> instead of <code>ValueError</code> when
called with an invalid <code>timeout</code> argument on a pool created
with <code>block=True</code>. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5059">#5059</a>)</p>
</li>
<li>
<p>Fixed port-zero handling to preserve explicit <code>:0</code> values
instead of substituting the default ports 80 or 443 in URL parsing, pool
selection, proxy configuration, <code>connection_from_url()</code>, and
HTTP/2 request authority. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5071">#5071</a>,
<a
href="https://redirect.github.com/urllib3/urllib3/issues/5101">#5101</a>)</p>
</li>
<li>
<p>Fixed a bug where <code>PoolManager</code> passed the
<code>assert_hostname</code> and <code>assert_fingerprint</code>
parameters to HTTP connection pools. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5077">#5077</a>)</p>
</li>
<li>
<p>Fixed <code>HTTPConnectionPool.urlopen()</code> and HTTP proxy
forwarding to strip URL fragments from absolute request targets before
sending requests. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5079">#5079</a>)</p>
</li>
<li>
<p>Added safeguards to the proxy tunneling code to prevent potential
security issues when handling invalid characters in the proxy host and
HTTP headers. This change affects users of Python 3.10, Python 3.11, and
Python 3.12 when the standard library does not contain the fix; those on
newer Python versions should upgrade to 3.13.14+ or 3.14.5+ to get the
same security fixes. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5091">#5091</a>)</p>
</li>
<li>
<p>Fixed <code>HTTPSConnection.connect()</code> overriding
<code>ProxyConfig.ssl_context</code>'s certificate policy and proxy
identity checks with the target connection's TLS settings when
forwarding through an HTTPS proxy.</p>
<p><code>HTTPSConnection</code> no longer applies target SNI,
assertions, or client credentials to forwarding proxy handshakes and
continues to use its <code>ssl_context</code> as a fallback when an
HTTPS proxy forwards an HTTP target. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5093">#5093</a>)</p>
</li>
<li>
<p>Fixed URL parsing to more strictly enforce RFC 3986 host syntax,
rejecting invalid host input such as raw spaces and control characters,
malformed percent-encodings, and percent-encoded control characters in
HTTP(S) hosts and IPv6 zone identifiers, including proxy CONNECT tunnel
targets. Host normalization now also follows RFC 3986 normalization
rules for percent-encoded octets by decoding percent-encoded unreserved
characters and uppercasing the hexadecimal digits of retained
percent-encoded octets. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5095">#5095</a>)</p>
</li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/urllib3/urllib3/blob/main/CHANGES.rst">urllib3's
changelog</a>.</em></p>
<blockquote>
<h1>2.8.0 (2026-09-15)</h1>
<h2>Security</h2>
<p>Fixed the following security issues:</p>
<ul>
<li>The TLS configuration for HTTPS proxies could be ignored or
overridden.
(High severity, <code>GHSA-8988-9cw3-xx77
<https://github.com/urllib3/urllib3/security/advisories/GHSA-8988-9cw3-xx77></code>__)</li>
<li><code>HTTPResponse.stream()</code> and <code>read_chunked()</code>
could buffer a chunk-size
line of unbounded length in memory. (High severity,
<code>GHSA-vxq7-64xx-v4gw
<https://github.com/urllib3/urllib3/security/advisories/GHSA-vxq7-64xx-v4gw></code>__)</li>
<li>Chunked Deflate streaming could enter an infinite loop. (Medium
severity,
<code>GHSA-gh4c-6fx4-qh6g
<https://github.com/urllib3/urllib3/security/advisories/GHSA-gh4c-6fx4-qh6g></code>__)</li>
</ul>
<p>.. caution::</p>
<pre><code>urllib3 2.8.0 fixes HTTPS proxy TLS configuration being
ignored or
overridden by destination settings. Configurations relying on that
behavior may require changes.
<p>Configure proxy CA certificates and client certificates in
<code>proxy_ssl_context</code>, and proxy identity checks with
<code>proxy_assert_hostname</code> or
<code>proxy_assert_fingerprint</code>.
Destination client certificates and identity overrides no longer
apply to HTTPS forwarding proxy connections.
</code></pre></p>
<h2>Deprecations & Removals</h2>
<ul>
<li>Deprecated using an empty collection as the <code>Retry</code>
option
<code>allowed_methods</code> to retry any verb.
(<code>[#5044](https://github.com/urllib3/urllib3/issues/5044)
<https://github.com/urllib3/urllib3/issues/5044></code>__)</li>
</ul>
<h2>Features</h2>
<ul>
<li>Added <code>Url.auth_decoded</code> and
<code>Url.auth_decoded_joined</code> convenience
properties to the result of <code>parse_url()</code>.
(<code>[#4945](https://github.com/urllib3/urllib3/issues/4945)
<https://github.com/urllib3/urllib3/issues/4945></code>__)</li>
<li>Added <code>basic_auth_encoding</code> and
<code>proxy_basic_auth_encoding</code> parameters to
<code>urllib3.util.make_headers()</code>.
(<code>[#5092](https://github.com/urllib3/urllib3/issues/5092)
<https://github.com/urllib3/urllib3/issues/5092></code>__)</li>
</ul>
<h2>Bugfixes</h2>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/urllib3/urllib3/commit/b1d30ab61fe0db8f11092805e8c5ac43e091064a"><code>b1d30ab</code></a>
Release 2.8.0</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/9016d7e8afc68185496ef07f3c3a4a743d04922e"><code>9016d7e</code></a>
Skip <code>test_read_chunked_with_trailing_data_does_not_hang</code> for
brotlicffi (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5258">#5258</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/9101f581a8b3659af23b6ff335ae77200ca33533"><code>9101f58</code></a>
Fix <code>nox -s docs</code> warning (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5256">#5256</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/cd770b059b543be29298ea5c52afb0b1b090f5ed"><code>cd770b0</code></a>
Merge commit from fork</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/ea2ad7b21a80da3632f80016526a18864586077f"><code>ea2ad7b</code></a>
Merge commit from fork</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/0716e31534345dc1599ea95d903c79f276239bd8"><code>0716e31</code></a>
Fix loading unencrypted client keys with a password in pyOpenSSL (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5255">#5255</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/43c68c8b43a9dcb44ed2cf4ec91384ca0d46b37d"><code>43c68c8</code></a>
Test pickling of <code>InvalidChunkLength</code> (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5247">#5247</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/308b279b3fb28e7bee952e152ec5baeb5bfd0817"><code>308b279</code></a>
Share security policy between GitHub and Read the Docs (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5253">#5253</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/53fa0731b27d4b71ab0755ea5b896422d005d706"><code>53fa073</code></a>
Add policy on duplicate pull requests (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5252">#5252</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/5f2a6a843d0100d1351c3f94d58581ca98d17267"><code>5f2a6a8</code></a>
Assert on the ALPN extension in test_tunnel_sets_http_11_alpn (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5232">#5232</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/urllib3/urllib3/compare/2.7.0...2.8.0">compare
view</a></li>
</ul>
</details>
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Dependabot will resolve any conflicts with this PR as long as you don't
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Bumps [urllib3](https://github.com/urllib3/urllib3) from 2.7.0 to 2.8.0.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/urllib3/urllib3/releases">urllib3's
releases</a>.</em></p>
<blockquote>
<h2>2.8.0</h2>
<h2>🚀 urllib3 is fundraising for HTTP/2 support</h2>
<p><a
href="https://sethmlarson.dev/urllib3-is-fundraising-for-http2-support">urllib3
is raising ~$40,000 USD</a> to release HTTP/2 support and ensure
long-term sustainable maintenance of the project. If your company or
organization uses Python and would benefit from HTTP/2 support in
Requests, pip, cloud SDKs, and thousands of other projects <a
href="https://opencollective.com/urllib3">please consider contributing
financially</a> to ensure HTTP/2 support is developed sustainably and
maintained for the long-haul.</p>
<p>Thank you for your support.</p>
<h2>Security</h2>
<p>Fixed the following security issues:</p>
<ul>
<li>The TLS configuration for HTTPS proxies could be ignored or
overridden. (High severity, GHSA-8988-9cw3-xx77)</li>
<li><code>HTTPResponse.stream()</code> and <code>read_chunked()</code>
could buffer a chunk-size line of unbounded length in memory. (High
severity, GHSA-vxq7-64xx-v4gw)</li>
<li>Chunked Deflate streaming could enter an infinite loop. (Medium
severity, GHSA-gh4c-6fx4-qh6g)</li>
</ul>
<blockquote>
<p>[!IMPORTANT]
urllib3 2.8.0 fixes HTTPS proxy TLS configuration being ignored or
overridden by destination settings. Configurations relying on that
behavior may require changes.</p>
<p>Configure proxy CA certificates and client certificates in
<code>proxy_ssl_context</code>, and proxy identity checks with
<code>proxy_assert_hostname</code> or
<code>proxy_assert_fingerprint</code>. Destination client certificates
and identity overrides no longer apply to HTTPS forwarding proxy
connections.</p>
</blockquote>
<blockquote>
<p>[!NOTE]
CVE IDs had not yet been assigned to these advisories at the time of
release due to a backlog at GitHub's CNA.</p>
</blockquote>
<h2>Deprecations & Removals</h2>
<ul>
<li>Deprecated using an empty collection as the <code>Retry</code>
option <code>allowed_methods</code> to retry any verb. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5044">#5044</a>)</li>
</ul>
<h2>Features</h2>
<ul>
<li>Added <code>Url.auth_decoded</code> and
<code>Url.auth_decoded_joined</code> convenience properties to the
result of <code>parse_url()</code>. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/4945">#4945</a>)</li>
<li>Added <code>basic_auth_encoding</code> and
<code>proxy_basic_auth_encoding</code> parameters to
<code>urllib3.util.make_headers()</code>. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5092">#5092</a>)</li>
</ul>
<h2>Bugfixes</h2>
<ul>
<li>
<p>Fixed response header handling to replace obsolete folded header
lines (<code>obs-fold</code>) with spaces in accordance with RFC 9112,
preventing raw CRLF sequences from appearing in header values such as
<code>Set-Cookie</code>. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/1362">#1362</a>)</p>
</li>
<li>
<p>Fixed usage of <code>proxy_ssl_context</code> with
<code>ProxyManager</code> when
<code>use_forwarding_for_https=True</code>. Passing
<code>ssl_context</code> instead of <code>proxy_ssl_context</code> for
HTTPS proxies in this configuration now emits a
<code>FutureWarning</code> and will raise an error in v3.0. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/2577">#2577</a>)</p>
</li>
<li>
<p>Changed behavior of the default <code>ConnectionPool.pool</code>
initialization. <code>LifoQueue</code> is now resolved from the
<code>queue</code> module after the <code>ConnectionPool</code> is
instantiated instead of using the default cached <code>QueueCls</code>
class property. This is done because sometimes the
<code>queue.LifoQueue</code> is monkey-patched late in the program, such
as by gevent. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/3289">#3289</a>)</p>
</li>
<li>
<p>Raised <code>UnrewindableBodyError</code> instead of
<code>ValueError</code> when retrying a request whose body had
<code>tell()</code> but not <code>seek()</code>. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/3779">#3779</a>)</p>
</li>
<li>
<p>Decoded percent-encoded SOCKS proxy credentials before authenticating
with the proxy server. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/3785">#3785</a>)</p>
</li>
<li>
<p>Fixed <code>HTTPResponse.drain_conn()</code> to discard unread
response data in 64 KiB chunks (same as the default <code>amt</code>
when doing <code>HTTPResponse.stream(...)</code>). (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5019">#5019</a>)</p>
</li>
<li>
<p>Fixed <code>is_ipaddress()</code> to detect non-standard IPv4 forms
accepted by <code>socket.connect</code>, such as hex
(<code>0x7f000001</code>), octal (<code>0177.0.0.1</code>), and decimal
integers (<code>2130706433</code>), ensuring SSL certificate
verification uses the correct mode for these addresses. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5029">#5029</a>)</p>
</li>
<li>
<p>Fixed <code>HTTPConnectionPool.urlopen</code> raising a misleading
<code>FullPoolError</code> instead of <code>ValueError</code> when
called with an invalid <code>timeout</code> argument on a pool created
with <code>block=True</code>. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5059">#5059</a>)</p>
</li>
<li>
<p>Fixed port-zero handling to preserve explicit <code>:0</code> values
instead of substituting the default ports 80 or 443 in URL parsing, pool
selection, proxy configuration, <code>connection_from_url()</code>, and
HTTP/2 request authority. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5071">#5071</a>,
<a
href="https://redirect.github.com/urllib3/urllib3/issues/5101">#5101</a>)</p>
</li>
<li>
<p>Fixed a bug where <code>PoolManager</code> passed the
<code>assert_hostname</code> and <code>assert_fingerprint</code>
parameters to HTTP connection pools. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5077">#5077</a>)</p>
</li>
<li>
<p>Fixed <code>HTTPConnectionPool.urlopen()</code> and HTTP proxy
forwarding to strip URL fragments from absolute request targets before
sending requests. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5079">#5079</a>)</p>
</li>
<li>
<p>Added safeguards to the proxy tunneling code to prevent potential
security issues when handling invalid characters in the proxy host and
HTTP headers. This change affects users of Python 3.10, Python 3.11, and
Python 3.12 when the standard library does not contain the fix; those on
newer Python versions should upgrade to 3.13.14+ or 3.14.5+ to get the
same security fixes. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5091">#5091</a>)</p>
</li>
<li>
<p>Fixed <code>HTTPSConnection.connect()</code> overriding
<code>ProxyConfig.ssl_context</code>'s certificate policy and proxy
identity checks with the target connection's TLS settings when
forwarding through an HTTPS proxy.</p>
<p><code>HTTPSConnection</code> no longer applies target SNI,
assertions, or client credentials to forwarding proxy handshakes and
continues to use its <code>ssl_context</code> as a fallback when an
HTTPS proxy forwards an HTTP target. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5093">#5093</a>)</p>
</li>
<li>
<p>Fixed URL parsing to more strictly enforce RFC 3986 host syntax,
rejecting invalid host input such as raw spaces and control characters,
malformed percent-encodings, and percent-encoded control characters in
HTTP(S) hosts and IPv6 zone identifiers, including proxy CONNECT tunnel
targets. Host normalization now also follows RFC 3986 normalization
rules for percent-encoded octets by decoding percent-encoded unreserved
characters and uppercasing the hexadecimal digits of retained
percent-encoded octets. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5095">#5095</a>)</p>
</li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/urllib3/urllib3/blob/main/CHANGES.rst">urllib3's
changelog</a>.</em></p>
<blockquote>
<h1>2.8.0 (2026-09-15)</h1>
<h2>Security</h2>
<p>Fixed the following security issues:</p>
<ul>
<li>The TLS configuration for HTTPS proxies could be ignored or
overridden.
(High severity, <code>GHSA-8988-9cw3-xx77
<https://github.com/urllib3/urllib3/security/advisories/GHSA-8988-9cw3-xx77></code>__)</li>
<li><code>HTTPResponse.stream()</code> and <code>read_chunked()</code>
could buffer a chunk-size
line of unbounded length in memory. (High severity,
<code>GHSA-vxq7-64xx-v4gw
<https://github.com/urllib3/urllib3/security/advisories/GHSA-vxq7-64xx-v4gw></code>__)</li>
<li>Chunked Deflate streaming could enter an infinite loop. (Medium
severity,
<code>GHSA-gh4c-6fx4-qh6g
<https://github.com/urllib3/urllib3/security/advisories/GHSA-gh4c-6fx4-qh6g></code>__)</li>
</ul>
<p>.. caution::</p>
<pre><code>urllib3 2.8.0 fixes HTTPS proxy TLS configuration being
ignored or
overridden by destination settings. Configurations relying on that
behavior may require changes.
<p>Configure proxy CA certificates and client certificates in
<code>proxy_ssl_context</code>, and proxy identity checks with
<code>proxy_assert_hostname</code> or
<code>proxy_assert_fingerprint</code>.
Destination client certificates and identity overrides no longer
apply to HTTPS forwarding proxy connections.
</code></pre></p>
<h2>Deprecations & Removals</h2>
<ul>
<li>Deprecated using an empty collection as the <code>Retry</code>
option
<code>allowed_methods</code> to retry any verb.
(<code>[#5044](https://github.com/urllib3/urllib3/issues/5044)
<https://github.com/urllib3/urllib3/issues/5044></code>__)</li>
</ul>
<h2>Features</h2>
<ul>
<li>Added <code>Url.auth_decoded</code> and
<code>Url.auth_decoded_joined</code> convenience
properties to the result of <code>parse_url()</code>.
(<code>[#4945](https://github.com/urllib3/urllib3/issues/4945)
<https://github.com/urllib3/urllib3/issues/4945></code>__)</li>
<li>Added <code>basic_auth_encoding</code> and
<code>proxy_basic_auth_encoding</code> parameters to
<code>urllib3.util.make_headers()</code>.
(<code>[#5092](https://github.com/urllib3/urllib3/issues/5092)
<https://github.com/urllib3/urllib3/issues/5092></code>__)</li>
</ul>
<h2>Bugfixes</h2>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/urllib3/urllib3/commit/b1d30ab61fe0db8f11092805e8c5ac43e091064a"><code>b1d30ab</code></a>
Release 2.8.0</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/9016d7e8afc68185496ef07f3c3a4a743d04922e"><code>9016d7e</code></a>
Skip <code>test_read_chunked_with_trailing_data_does_not_hang</code> for
brotlicffi (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5258">#5258</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/9101f581a8b3659af23b6ff335ae77200ca33533"><code>9101f58</code></a>
Fix <code>nox -s docs</code> warning (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5256">#5256</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/cd770b059b543be29298ea5c52afb0b1b090f5ed"><code>cd770b0</code></a>
Merge commit from fork</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/ea2ad7b21a80da3632f80016526a18864586077f"><code>ea2ad7b</code></a>
Merge commit from fork</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/0716e31534345dc1599ea95d903c79f276239bd8"><code>0716e31</code></a>
Fix loading unencrypted client keys with a password in pyOpenSSL (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5255">#5255</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/43c68c8b43a9dcb44ed2cf4ec91384ca0d46b37d"><code>43c68c8</code></a>
Test pickling of <code>InvalidChunkLength</code> (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5247">#5247</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/308b279b3fb28e7bee952e152ec5baeb5bfd0817"><code>308b279</code></a>
Share security policy between GitHub and Read the Docs (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5253">#5253</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/53fa0731b27d4b71ab0755ea5b896422d005d706"><code>53fa073</code></a>
Add policy on duplicate pull requests (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5252">#5252</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/5f2a6a843d0100d1351c3f94d58581ca98d17267"><code>5f2a6a8</code></a>
Assert on the ALPN extension in test_tunnel_sets_http_11_alpn (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5232">#5232</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/urllib3/urllib3/compare/2.7.0...2.8.0">compare
view</a></li>
</ul>
</details>
<br />
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Dependabot will resolve any conflicts with this PR as long as you don't
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`@dependabot rebase`.
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You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
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Bumps [urllib3](https://github.com/urllib3/urllib3) from 2.7.0 to 2.8.0.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/urllib3/urllib3/releases">urllib3's
releases</a>.</em></p>
<blockquote>
<h2>2.8.0</h2>
<h2>🚀 urllib3 is fundraising for HTTP/2 support</h2>
<p><a
href="https://sethmlarson.dev/urllib3-is-fundraising-for-http2-support">urllib3
is raising ~$40,000 USD</a> to release HTTP/2 support and ensure
long-term sustainable maintenance of the project. If your company or
organization uses Python and would benefit from HTTP/2 support in
Requests, pip, cloud SDKs, and thousands of other projects <a
href="https://opencollective.com/urllib3">please consider contributing
financially</a> to ensure HTTP/2 support is developed sustainably and
maintained for the long-haul.</p>
<p>Thank you for your support.</p>
<h2>Security</h2>
<p>Fixed the following security issues:</p>
<ul>
<li>The TLS configuration for HTTPS proxies could be ignored or
overridden. (High severity, GHSA-8988-9cw3-xx77)</li>
<li><code>HTTPResponse.stream()</code> and <code>read_chunked()</code>
could buffer a chunk-size line of unbounded length in memory. (High
severity, GHSA-vxq7-64xx-v4gw)</li>
<li>Chunked Deflate streaming could enter an infinite loop. (Medium
severity, GHSA-gh4c-6fx4-qh6g)</li>
</ul>
<blockquote>
<p>[!IMPORTANT]
urllib3 2.8.0 fixes HTTPS proxy TLS configuration being ignored or
overridden by destination settings. Configurations relying on that
behavior may require changes.</p>
<p>Configure proxy CA certificates and client certificates in
<code>proxy_ssl_context</code>, and proxy identity checks with
<code>proxy_assert_hostname</code> or
<code>proxy_assert_fingerprint</code>. Destination client certificates
and identity overrides no longer apply to HTTPS forwarding proxy
connections.</p>
</blockquote>
<blockquote>
<p>[!NOTE]
CVE IDs had not yet been assigned to these advisories at the time of
release due to a backlog at GitHub's CNA.</p>
</blockquote>
<h2>Deprecations & Removals</h2>
<ul>
<li>Deprecated using an empty collection as the <code>Retry</code>
option <code>allowed_methods</code> to retry any verb. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5044">#5044</a>)</li>
</ul>
<h2>Features</h2>
<ul>
<li>Added <code>Url.auth_decoded</code> and
<code>Url.auth_decoded_joined</code> convenience properties to the
result of <code>parse_url()</code>. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/4945">#4945</a>)</li>
<li>Added <code>basic_auth_encoding</code> and
<code>proxy_basic_auth_encoding</code> parameters to
<code>urllib3.util.make_headers()</code>. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5092">#5092</a>)</li>
</ul>
<h2>Bugfixes</h2>
<ul>
<li>
<p>Fixed response header handling to replace obsolete folded header
lines (<code>obs-fold</code>) with spaces in accordance with RFC 9112,
preventing raw CRLF sequences from appearing in header values such as
<code>Set-Cookie</code>. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/1362">#1362</a>)</p>
</li>
<li>
<p>Fixed usage of <code>proxy_ssl_context</code> with
<code>ProxyManager</code> when
<code>use_forwarding_for_https=True</code>. Passing
<code>ssl_context</code> instead of <code>proxy_ssl_context</code> for
HTTPS proxies in this configuration now emits a
<code>FutureWarning</code> and will raise an error in v3.0. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/2577">#2577</a>)</p>
</li>
<li>
<p>Changed behavior of the default <code>ConnectionPool.pool</code>
initialization. <code>LifoQueue</code> is now resolved from the
<code>queue</code> module after the <code>ConnectionPool</code> is
instantiated instead of using the default cached <code>QueueCls</code>
class property. This is done because sometimes the
<code>queue.LifoQueue</code> is monkey-patched late in the program, such
as by gevent. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/3289">#3289</a>)</p>
</li>
<li>
<p>Raised <code>UnrewindableBodyError</code> instead of
<code>ValueError</code> when retrying a request whose body had
<code>tell()</code> but not <code>seek()</code>. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/3779">#3779</a>)</p>
</li>
<li>
<p>Decoded percent-encoded SOCKS proxy credentials before authenticating
with the proxy server. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/3785">#3785</a>)</p>
</li>
<li>
<p>Fixed <code>HTTPResponse.drain_conn()</code> to discard unread
response data in 64 KiB chunks (same as the default <code>amt</code>
when doing <code>HTTPResponse.stream(...)</code>). (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5019">#5019</a>)</p>
</li>
<li>
<p>Fixed <code>is_ipaddress()</code> to detect non-standard IPv4 forms
accepted by <code>socket.connect</code>, such as hex
(<code>0x7f000001</code>), octal (<code>0177.0.0.1</code>), and decimal
integers (<code>2130706433</code>), ensuring SSL certificate
verification uses the correct mode for these addresses. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5029">#5029</a>)</p>
</li>
<li>
<p>Fixed <code>HTTPConnectionPool.urlopen</code> raising a misleading
<code>FullPoolError</code> instead of <code>ValueError</code> when
called with an invalid <code>timeout</code> argument on a pool created
with <code>block=True</code>. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5059">#5059</a>)</p>
</li>
<li>
<p>Fixed port-zero handling to preserve explicit <code>:0</code> values
instead of substituting the default ports 80 or 443 in URL parsing, pool
selection, proxy configuration, <code>connection_from_url()</code>, and
HTTP/2 request authority. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5071">#5071</a>,
<a
href="https://redirect.github.com/urllib3/urllib3/issues/5101">#5101</a>)</p>
</li>
<li>
<p>Fixed a bug where <code>PoolManager</code> passed the
<code>assert_hostname</code> and <code>assert_fingerprint</code>
parameters to HTTP connection pools. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5077">#5077</a>)</p>
</li>
<li>
<p>Fixed <code>HTTPConnectionPool.urlopen()</code> and HTTP proxy
forwarding to strip URL fragments from absolute request targets before
sending requests. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5079">#5079</a>)</p>
</li>
<li>
<p>Added safeguards to the proxy tunneling code to prevent potential
security issues when handling invalid characters in the proxy host and
HTTP headers. This change affects users of Python 3.10, Python 3.11, and
Python 3.12 when the standard library does not contain the fix; those on
newer Python versions should upgrade to 3.13.14+ or 3.14.5+ to get the
same security fixes. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5091">#5091</a>)</p>
</li>
<li>
<p>Fixed <code>HTTPSConnection.connect()</code> overriding
<code>ProxyConfig.ssl_context</code>'s certificate policy and proxy
identity checks with the target connection's TLS settings when
forwarding through an HTTPS proxy.</p>
<p><code>HTTPSConnection</code> no longer applies target SNI,
assertions, or client credentials to forwarding proxy handshakes and
continues to use its <code>ssl_context</code> as a fallback when an
HTTPS proxy forwards an HTTP target. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5093">#5093</a>)</p>
</li>
<li>
<p>Fixed URL parsing to more strictly enforce RFC 3986 host syntax,
rejecting invalid host input such as raw spaces and control characters,
malformed percent-encodings, and percent-encoded control characters in
HTTP(S) hosts and IPv6 zone identifiers, including proxy CONNECT tunnel
targets. Host normalization now also follows RFC 3986 normalization
rules for percent-encoded octets by decoding percent-encoded unreserved
characters and uppercasing the hexadecimal digits of retained
percent-encoded octets. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5095">#5095</a>)</p>
</li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/urllib3/urllib3/blob/main/CHANGES.rst">urllib3's
changelog</a>.</em></p>
<blockquote>
<h1>2.8.0 (2026-09-15)</h1>
<h2>Security</h2>
<p>Fixed the following security issues:</p>
<ul>
<li>The TLS configuration for HTTPS proxies could be ignored or
overridden.
(High severity, <code>GHSA-8988-9cw3-xx77
<https://github.com/urllib3/urllib3/security/advisories/GHSA-8988-9cw3-xx77></code>__)</li>
<li><code>HTTPResponse.stream()</code> and <code>read_chunked()</code>
could buffer a chunk-size
line of unbounded length in memory. (High severity,
<code>GHSA-vxq7-64xx-v4gw
<https://github.com/urllib3/urllib3/security/advisories/GHSA-vxq7-64xx-v4gw></code>__)</li>
<li>Chunked Deflate streaming could enter an infinite loop. (Medium
severity,
<code>GHSA-gh4c-6fx4-qh6g
<https://github.com/urllib3/urllib3/security/advisories/GHSA-gh4c-6fx4-qh6g></code>__)</li>
</ul>
<p>.. caution::</p>
<pre><code>urllib3 2.8.0 fixes HTTPS proxy TLS configuration being
ignored or
overridden by destination settings. Configurations relying on that
behavior may require changes.
<p>Configure proxy CA certificates and client certificates in
<code>proxy_ssl_context</code>, and proxy identity checks with
<code>proxy_assert_hostname</code> or
<code>proxy_assert_fingerprint</code>.
Destination client certificates and identity overrides no longer
apply to HTTPS forwarding proxy connections.
</code></pre></p>
<h2>Deprecations & Removals</h2>
<ul>
<li>Deprecated using an empty collection as the <code>Retry</code>
option
<code>allowed_methods</code> to retry any verb.
(<code>[#5044](https://github.com/urllib3/urllib3/issues/5044)
<https://github.com/urllib3/urllib3/issues/5044></code>__)</li>
</ul>
<h2>Features</h2>
<ul>
<li>Added <code>Url.auth_decoded</code> and
<code>Url.auth_decoded_joined</code> convenience
properties to the result of <code>parse_url()</code>.
(<code>[#4945](https://github.com/urllib3/urllib3/issues/4945)
<https://github.com/urllib3/urllib3/issues/4945></code>__)</li>
<li>Added <code>basic_auth_encoding</code> and
<code>proxy_basic_auth_encoding</code> parameters to
<code>urllib3.util.make_headers()</code>.
(<code>[#5092](https://github.com/urllib3/urllib3/issues/5092)
<https://github.com/urllib3/urllib3/issues/5092></code>__)</li>
</ul>
<h2>Bugfixes</h2>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/urllib3/urllib3/commit/b1d30ab61fe0db8f11092805e8c5ac43e091064a"><code>b1d30ab</code></a>
Release 2.8.0</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/9016d7e8afc68185496ef07f3c3a4a743d04922e"><code>9016d7e</code></a>
Skip <code>test_read_chunked_with_trailing_data_does_not_hang</code> for
brotlicffi (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5258">#5258</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/9101f581a8b3659af23b6ff335ae77200ca33533"><code>9101f58</code></a>
Fix <code>nox -s docs</code> warning (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5256">#5256</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/cd770b059b543be29298ea5c52afb0b1b090f5ed"><code>cd770b0</code></a>
Merge commit from fork</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/ea2ad7b21a80da3632f80016526a18864586077f"><code>ea2ad7b</code></a>
Merge commit from fork</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/0716e31534345dc1599ea95d903c79f276239bd8"><code>0716e31</code></a>
Fix loading unencrypted client keys with a password in pyOpenSSL (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5255">#5255</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/43c68c8b43a9dcb44ed2cf4ec91384ca0d46b37d"><code>43c68c8</code></a>
Test pickling of <code>InvalidChunkLength</code> (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5247">#5247</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/308b279b3fb28e7bee952e152ec5baeb5bfd0817"><code>308b279</code></a>
Share security policy between GitHub and Read the Docs (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5253">#5253</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/53fa0731b27d4b71ab0755ea5b896422d005d706"><code>53fa073</code></a>
Add policy on duplicate pull requests (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5252">#5252</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/5f2a6a843d0100d1351c3f94d58581ca98d17267"><code>5f2a6a8</code></a>
Assert on the ALPN extension in test_tunnel_sets_http_11_alpn (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5232">#5232</a>)</li>
<li>Additional commits viewable in <a
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Bumps [urllib3](https://github.com/urllib3/urllib3) from 2.7.0 to 2.8.0.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/urllib3/urllib3/releases">urllib3's
releases</a>.</em></p>
<blockquote>
<h2>2.8.0</h2>
<h2>🚀 urllib3 is fundraising for HTTP/2 support</h2>
<p><a
href="https://sethmlarson.dev/urllib3-is-fundraising-for-http2-support">urllib3
is raising ~$40,000 USD</a> to release HTTP/2 support and ensure
long-term sustainable maintenance of the project. If your company or
organization uses Python and would benefit from HTTP/2 support in
Requests, pip, cloud SDKs, and thousands of other projects <a
href="https://opencollective.com/urllib3">please consider contributing
financially</a> to ensure HTTP/2 support is developed sustainably and
maintained for the long-haul.</p>
<p>Thank you for your support.</p>
<h2>Security</h2>
<p>Fixed the following security issues:</p>
<ul>
<li>The TLS configuration for HTTPS proxies could be ignored or
overridden. (High severity, GHSA-8988-9cw3-xx77)</li>
<li><code>HTTPResponse.stream()</code> and <code>read_chunked()</code>
could buffer a chunk-size line of unbounded length in memory. (High
severity, GHSA-vxq7-64xx-v4gw)</li>
<li>Chunked Deflate streaming could enter an infinite loop. (Medium
severity, GHSA-gh4c-6fx4-qh6g)</li>
</ul>
<blockquote>
<p>[!IMPORTANT]
urllib3 2.8.0 fixes HTTPS proxy TLS configuration being ignored or
overridden by destination settings. Configurations relying on that
behavior may require changes.</p>
<p>Configure proxy CA certificates and client certificates in
<code>proxy_ssl_context</code>, and proxy identity checks with
<code>proxy_assert_hostname</code> or
<code>proxy_assert_fingerprint</code>. Destination client certificates
and identity overrides no longer apply to HTTPS forwarding proxy
connections.</p>
</blockquote>
<blockquote>
<p>[!NOTE]
CVE IDs had not yet been assigned to these advisories at the time of
release due to a backlog at GitHub's CNA.</p>
</blockquote>
<h2>Deprecations & Removals</h2>
<ul>
<li>Deprecated using an empty collection as the <code>Retry</code>
option <code>allowed_methods</code> to retry any verb. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5044">#5044</a>)</li>
</ul>
<h2>Features</h2>
<ul>
<li>Added <code>Url.auth_decoded</code> and
<code>Url.auth_decoded_joined</code> convenience properties to the
result of <code>parse_url()</code>. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/4945">#4945</a>)</li>
<li>Added <code>basic_auth_encoding</code> and
<code>proxy_basic_auth_encoding</code> parameters to
<code>urllib3.util.make_headers()</code>. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5092">#5092</a>)</li>
</ul>
<h2>Bugfixes</h2>
<ul>
<li>
<p>Fixed response header handling to replace obsolete folded header
lines (<code>obs-fold</code>) with spaces in accordance with RFC 9112,
preventing raw CRLF sequences from appearing in header values such as
<code>Set-Cookie</code>. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/1362">#1362</a>)</p>
</li>
<li>
<p>Fixed usage of <code>proxy_ssl_context</code> with
<code>ProxyManager</code> when
<code>use_forwarding_for_https=True</code>. Passing
<code>ssl_context</code> instead of <code>proxy_ssl_context</code> for
HTTPS proxies in this configuration now emits a
<code>FutureWarning</code> and will raise an error in v3.0. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/2577">#2577</a>)</p>
</li>
<li>
<p>Changed behavior of the default <code>ConnectionPool.pool</code>
initialization. <code>LifoQueue</code> is now resolved from the
<code>queue</code> module after the <code>ConnectionPool</code> is
instantiated instead of using the default cached <code>QueueCls</code>
class property. This is done because sometimes the
<code>queue.LifoQueue</code> is monkey-patched late in the program, such
as by gevent. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/3289">#3289</a>)</p>
</li>
<li>
<p>Raised <code>UnrewindableBodyError</code> instead of
<code>ValueError</code> when retrying a request whose body had
<code>tell()</code> but not <code>seek()</code>. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/3779">#3779</a>)</p>
</li>
<li>
<p>Decoded percent-encoded SOCKS proxy credentials before authenticating
with the proxy server. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/3785">#3785</a>)</p>
</li>
<li>
<p>Fixed <code>HTTPResponse.drain_conn()</code> to discard unread
response data in 64 KiB chunks (same as the default <code>amt</code>
when doing <code>HTTPResponse.stream(...)</code>). (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5019">#5019</a>)</p>
</li>
<li>
<p>Fixed <code>is_ipaddress()</code> to detect non-standard IPv4 forms
accepted by <code>socket.connect</code>, such as hex
(<code>0x7f000001</code>), octal (<code>0177.0.0.1</code>), and decimal
integers (<code>2130706433</code>), ensuring SSL certificate
verification uses the correct mode for these addresses. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5029">#5029</a>)</p>
</li>
<li>
<p>Fixed <code>HTTPConnectionPool.urlopen</code> raising a misleading
<code>FullPoolError</code> instead of <code>ValueError</code> when
called with an invalid <code>timeout</code> argument on a pool created
with <code>block=True</code>. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5059">#5059</a>)</p>
</li>
<li>
<p>Fixed port-zero handling to preserve explicit <code>:0</code> values
instead of substituting the default ports 80 or 443 in URL parsing, pool
selection, proxy configuration, <code>connection_from_url()</code>, and
HTTP/2 request authority. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5071">#5071</a>,
<a
href="https://redirect.github.com/urllib3/urllib3/issues/5101">#5101</a>)</p>
</li>
<li>
<p>Fixed a bug where <code>PoolManager</code> passed the
<code>assert_hostname</code> and <code>assert_fingerprint</code>
parameters to HTTP connection pools. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5077">#5077</a>)</p>
</li>
<li>
<p>Fixed <code>HTTPConnectionPool.urlopen()</code> and HTTP proxy
forwarding to strip URL fragments from absolute request targets before
sending requests. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5079">#5079</a>)</p>
</li>
<li>
<p>Added safeguards to the proxy tunneling code to prevent potential
security issues when handling invalid characters in the proxy host and
HTTP headers. This change affects users of Python 3.10, Python 3.11, and
Python 3.12 when the standard library does not contain the fix; those on
newer Python versions should upgrade to 3.13.14+ or 3.14.5+ to get the
same security fixes. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5091">#5091</a>)</p>
</li>
<li>
<p>Fixed <code>HTTPSConnection.connect()</code> overriding
<code>ProxyConfig.ssl_context</code>'s certificate policy and proxy
identity checks with the target connection's TLS settings when
forwarding through an HTTPS proxy.</p>
<p><code>HTTPSConnection</code> no longer applies target SNI,
assertions, or client credentials to forwarding proxy handshakes and
continues to use its <code>ssl_context</code> as a fallback when an
HTTPS proxy forwards an HTTP target. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5093">#5093</a>)</p>
</li>
<li>
<p>Fixed URL parsing to more strictly enforce RFC 3986 host syntax,
rejecting invalid host input such as raw spaces and control characters,
malformed percent-encodings, and percent-encoded control characters in
HTTP(S) hosts and IPv6 zone identifiers, including proxy CONNECT tunnel
targets. Host normalization now also follows RFC 3986 normalization
rules for percent-encoded octets by decoding percent-encoded unreserved
characters and uppercasing the hexadecimal digits of retained
percent-encoded octets. (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5095">#5095</a>)</p>
</li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/urllib3/urllib3/blob/main/CHANGES.rst">urllib3's
changelog</a>.</em></p>
<blockquote>
<h1>2.8.0 (2026-09-15)</h1>
<h2>Security</h2>
<p>Fixed the following security issues:</p>
<ul>
<li>The TLS configuration for HTTPS proxies could be ignored or
overridden.
(High severity, <code>GHSA-8988-9cw3-xx77
<https://github.com/urllib3/urllib3/security/advisories/GHSA-8988-9cw3-xx77></code>__)</li>
<li><code>HTTPResponse.stream()</code> and <code>read_chunked()</code>
could buffer a chunk-size
line of unbounded length in memory. (High severity,
<code>GHSA-vxq7-64xx-v4gw
<https://github.com/urllib3/urllib3/security/advisories/GHSA-vxq7-64xx-v4gw></code>__)</li>
<li>Chunked Deflate streaming could enter an infinite loop. (Medium
severity,
<code>GHSA-gh4c-6fx4-qh6g
<https://github.com/urllib3/urllib3/security/advisories/GHSA-gh4c-6fx4-qh6g></code>__)</li>
</ul>
<p>.. caution::</p>
<pre><code>urllib3 2.8.0 fixes HTTPS proxy TLS configuration being
ignored or
overridden by destination settings. Configurations relying on that
behavior may require changes.
<p>Configure proxy CA certificates and client certificates in
<code>proxy_ssl_context</code>, and proxy identity checks with
<code>proxy_assert_hostname</code> or
<code>proxy_assert_fingerprint</code>.
Destination client certificates and identity overrides no longer
apply to HTTPS forwarding proxy connections.
</code></pre></p>
<h2>Deprecations & Removals</h2>
<ul>
<li>Deprecated using an empty collection as the <code>Retry</code>
option
<code>allowed_methods</code> to retry any verb.
(<code>[#5044](https://github.com/urllib3/urllib3/issues/5044)
<https://github.com/urllib3/urllib3/issues/5044></code>__)</li>
</ul>
<h2>Features</h2>
<ul>
<li>Added <code>Url.auth_decoded</code> and
<code>Url.auth_decoded_joined</code> convenience
properties to the result of <code>parse_url()</code>.
(<code>[#4945](https://github.com/urllib3/urllib3/issues/4945)
<https://github.com/urllib3/urllib3/issues/4945></code>__)</li>
<li>Added <code>basic_auth_encoding</code> and
<code>proxy_basic_auth_encoding</code> parameters to
<code>urllib3.util.make_headers()</code>.
(<code>[#5092](https://github.com/urllib3/urllib3/issues/5092)
<https://github.com/urllib3/urllib3/issues/5092></code>__)</li>
</ul>
<h2>Bugfixes</h2>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/urllib3/urllib3/commit/b1d30ab61fe0db8f11092805e8c5ac43e091064a"><code>b1d30ab</code></a>
Release 2.8.0</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/9016d7e8afc68185496ef07f3c3a4a743d04922e"><code>9016d7e</code></a>
Skip <code>test_read_chunked_with_trailing_data_does_not_hang</code> for
brotlicffi (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5258">#5258</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/9101f581a8b3659af23b6ff335ae77200ca33533"><code>9101f58</code></a>
Fix <code>nox -s docs</code> warning (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5256">#5256</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/cd770b059b543be29298ea5c52afb0b1b090f5ed"><code>cd770b0</code></a>
Merge commit from fork</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/ea2ad7b21a80da3632f80016526a18864586077f"><code>ea2ad7b</code></a>
Merge commit from fork</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/0716e31534345dc1599ea95d903c79f276239bd8"><code>0716e31</code></a>
Fix loading unencrypted client keys with a password in pyOpenSSL (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5255">#5255</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/43c68c8b43a9dcb44ed2cf4ec91384ca0d46b37d"><code>43c68c8</code></a>
Test pickling of <code>InvalidChunkLength</code> (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5247">#5247</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/308b279b3fb28e7bee952e152ec5baeb5bfd0817"><code>308b279</code></a>
Share security policy between GitHub and Read the Docs (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5253">#5253</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/53fa0731b27d4b71ab0755ea5b896422d005d706"><code>53fa073</code></a>
Add policy on duplicate pull requests (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5252">#5252</a>)</li>
<li><a
href="https://github.com/urllib3/urllib3/commit/5f2a6a843d0100d1351c3f94d58581ca98d17267"><code>5f2a6a8</code></a>
Assert on the ALPN extension in test_tunnel_sets_http_11_alpn (<a
href="https://redirect.github.com/urllib3/urllib3/issues/5232">#5232</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/urllib3/urllib3/compare/2.7.0...2.8.0">compare
view</a></li>
</ul>
</details>
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Dependabot will resolve any conflicts with this PR as long as you don't
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