CodeRabbit security review (Major, CWE-693) correctly identified that GNU sed
collects -e/--expression scripts from any argv position: a script option after
positional operands is still executed, so stopping the option walk at the first
positional let an e-flagged script hide behind it.
Verified against GNU sed 4.9 before fixing:
- 'sed -e s/x/y/ - -e s/y/X/e' runs X (the later -e executes)
- with any script option present, every positional is a file operand
sedScriptParts now walks the full argv, collects scripts from all -e/
--expression positions, and only promotes the first positional to the script
when no script option was given. Unknown options after positionals still fall
back to the opaque default.
4 regression tests pin the reported bypass paths (suite: 805/805).
chenhz01
34a7f41539