CVEvulnerability
CVE-2026-112934
6.1 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2026-10-20
- Last modified
- 2026-10-22
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 6.1 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
- Weaknesses
- CWE-62
Description
filelock is a platform-independent file lock for Python. From 4.0.0 until 4.2.1, SoftReadWriteLock refreshes holder records by name, allowing another local user with rename access to the lock directory to replace a record with a named pipe and stall the lock, or under a permissive hard-link policy to link a reachable target file and cause the lock user to write through it. This issue is fixed in version 4.2.1.
Affected configurations
• tox-dev filelock (>= 4.0.0 < 4.2.1)
Related
Weakness · CWE (1)
- CWE-62 UNIX Hard Link weakness
References
- https://github.com/tox-dev/filelock/commit/bfa066d65a1ba9106f86ee9d027f7588b9c77e03 Patch
- https://github.com/tox-dev/filelock/pull/842 Patch
- https://github.com/tox-dev/filelock/releases/tag/4.2.1 Release Notes
- https://github.com/tox-dev/filelock/security/advisories/GHSA-fj95-fr6c-h845 Exploit, Mitigation, Vendor Advisory
- https://github.com/tox-dev/filelock/security/advisories/GHSA-fj95-fr6c-h845 Exploit, Mitigation, Vendor Advisory