CVEvulnerability
CVE-2026-112912
2.5 LOW
Official page ↗
- Status
- Analyzed
- Published
- 2026-10-20
- Last modified
- 2026-10-21
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 2.5 LOW — CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
- Weaknesses
- CWE-59
Description
filelock is a platform-independent file lock for Python. From 3.32.6 until 4.2.1, SoftFileLock can follow a swapped symbolic link during the conditional os.access writability check for a node without its owner-write bit, allowing another local user on a platform and directory configuration that follows the link to infer whether a chosen path exists and is writable from the observable acquisition result. This issue is fixed in version 4.2.1.
Affected configurations
• tox-dev filelock (>= 3.32.6 < 4.2.1)
Related
Weakness · CWE (1)
- CWE-59 Improper Link Resolution Before File Access weakness
References
- https://github.com/tox-dev/filelock/commit/e1e825b1992f69fb6b346dc395d5ae4893536c0a Patch
- https://github.com/tox-dev/filelock/pull/835 Patch
- https://github.com/tox-dev/filelock/releases/tag/4.2.1 Release Notes
- https://github.com/tox-dev/filelock/security/advisories/GHSA-9j6q-wvj5-jgjg Exploit, Mitigation, Patch, Vendor Advisory
- https://github.com/tox-dev/filelock/security/advisories/GHSA-9j6q-wvj5-jgjg Exploit, Mitigation, Patch, Vendor Advisory