MEDIUM 6.1 NVD
CVE-2026-112937
filelock is a platform-independent file lock for Python. From 4.1.0 until 4.2.1, ReadWriteLock can remove a randomized .filelock-* private-hard-link directory d
filelock is a platform-independent file lock for Python. From 4.1.0 until 4.2.1, ReadWriteLock can remove a randomized .filelock-* private-hard-link directory during cleanup, allowing another local user with rename access in a non-sticky parent to observe a live name or forge a dead-owner sweep name and rename a sibling directory onto it for deletion. This issue is fixed in version 4.2.1.
References
- https://github.com/tox-dev/filelock/commit/5e3f2ec0c5fb17cb2635b60b2b68bc63ab81ca2d
- https://github.com/tox-dev/filelock/pull/834
- https://github.com/tox-dev/filelock/releases/tag/4.2.1
- https://github.com/tox-dev/filelock/security/advisories/GHSA-jqc4-5cvw-7w85
This medium severity vulnerability with a CVSS score of 6.1 was published on 2026-10-20 via NVD.
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