CVE-2026-112909 (GCVE-0-2026-112909)

Vulnerability from cvelistv5 – Published: 2026-10-20 14:16 – Updated: 2026-10-22 21:25
VLAI
Title
filelock: UnixFileLock truncates and chmods any regular file another user renames or hard-links onto the lock path
Summary
filelock is a platform-independent file lock for Python. Prior to 4.2.1, UnixFileLock can truncate a regular file renamed onto the lock path when another local user has actual rename permission, or hard-linked there under a permissive hard-link policy; when an explicit mode is requested, affected versions from 3.10.2 can also change that file's mode. This issue is fixed in version 4.2.1.
Severity
6.1 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-22 21:24 UTC
CWE
  • CWE-706 - Use of Incorrectly-Resolved Name or Reference
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7761 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
tox-dev filelock Affected: < 4.2.1
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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