tmpdir: fix insecure temporary directory vulnerability (CVE-2025-71176)#14343
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bluetech wants to merge 1 commit intopytest-dev:mainfrom
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tmpdir: fix insecure temporary directory vulnerability (CVE-2025-71176)#14343bluetech wants to merge 1 commit intopytest-dev:mainfrom
bluetech wants to merge 1 commit intopytest-dev:mainfrom
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A previous fix for insecure temporary directory issue c49100c wasn't sufficient because it followed symlinks. Stop following symlinks, and reject if a symlink; we know it shouldn't be. Fix pytest-dev#14279. [0] https://www.openwall.com/lists/oss-security/2026/01/21/5
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This is my proposed alternative to #13669 as discussed in the issue. I think we should go with the simple fix for now. I think this one should be safe to backport.
A previous fix for insecure temporary directory issue c49100c wasn't sufficient because it followed symlinks.
Stop following symlinks, and reject if a symlink; we know it shouldn't be.
Fix #14279.
[0] https://www.openwall.com/lists/oss-security/2026/01/21/5