CVE-2026-112941
LOW
3,3
Source: [email protected]
Attack Vector: local
Attack Complexity: low
Privileges Required: low
User Interaction: none
Scope: unchanged
Confidentiality: none
Integrity: low
Availability: none
Description
AI Translation Available
filelock is a platform-independent file lock for Python. From 4.1.0 until 4.2.1, SoftReadWriteLock and AsyncSoftReadWriteLock cache a successful check of the <path>.rw lock tree and resolve its names again during later record operations, allowing another local user who can replace that tree after the first acquisition to redirect lock-record writes into directories writable by the lock user. This issue is fixed in version 4.2.1.
367
Time-of-check Time-of-use (TOCTOU) Race Condition
IncompleteCommon Consequences
Security Scopes Affected:
Integrity
Other
Non-Repudiation
Potential Impacts:
Alter Execution Logic
Unexpected State
Modify Application Data
Modify Files Or Directories
Modify Memory
Other
Hide Activities
Applicable Platforms
All platforms may be affected
https://github.com/tox-dev/filelock/commit/bfa066d65a1ba9106f86ee9d027f7588b9c7…
https://github.com/tox-dev/filelock/pull/842
https://github.com/tox-dev/filelock/releases/tag/4.2.1
https://github.com/tox-dev/filelock/security/advisories/GHSA-wfhq-q4j2-c37m