CVE-2026-112914: CWE-363: Race Condition Enabling Link Following in tox-dev filelock
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.
CVSS v3.1
Score 5.3medium
Affected software
tox-dev
filelock
Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-10-19T20:16:09.858Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ad77f652cdf04f65637ac34
Added to database: 10/20/2026, 14:49:09 UTC
Last updated: 10/20/2026, 14:49:09 UTC
Views: 1
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