#1076 : Filesystem allow-list bypass fix#1077
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dgageot merged 1 commit intodocker:mainfrom Dec 13, 2025
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Signed-off-by: Jean-Laurent de Morlhon <jeanlaurent@morlhon.net>
dgageot
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Dec 13, 2025
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Fix path traversal vulnerability in filesystem allow-list
Fixes #1076
Problem
The isPathAllowed() function used a naive prefix check that allowed sibling directories with similar names to bypass the allow-list. When /home/user/project was allowed, paths like /home/user/project-secrets or /home/user/project2 would incorrectly be granted access.
Solution
Changed from strings.HasPrefix(absPath, allowedAbs) to require either an exact match or a path separator after the allowed directory prefix: