CVEvulnerability
CVE-2026-112914
5.3 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2026-10-20
- Last modified
- 2026-10-21
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.3 MEDIUM — CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:N
- Weaknesses
- CWE-363, CWE-59
Description
filelock is a platform-independent file lock for Python. From 4.1.0 until 4.2.1, SoftFileLock can restore a stale marker by name after moving it aside, allowing another local user with rename access in a non-sticky lock directory to swap in a symbolic link and, on a runtime that follows the link and a same-filesystem target, make the lock user hard-link one of its files into the lock directory. This issue is fixed in version 4.2.1.
Affected configurations
• tox-dev filelock (>= 4.1.0 < 4.2.1)
Related
References
- https://github.com/tox-dev/filelock/commit/740ff666b62a88496c8d7394e4e6230605e4d62b Patch
- https://github.com/tox-dev/filelock/pull/843 Patch
- https://github.com/tox-dev/filelock/releases/tag/4.2.1 Release Notes
- https://github.com/tox-dev/filelock/security/advisories/GHSA-crv4-6mhj-j5jh Exploit, Mitigation, Patch, Vendor Advisory