MEDIUM 6.3 Microsoft

CVE-2025-68146

filelock has TOCTOU race condition that allows symlink attacks during lock file creation

Microsoft Security Update 2025-Dec: filelock has TOCTOU race condition that allows symlink attacks during lock file creation

Affected Products

azl3 python-filelock 3.14.0-1 on Azure Linux 3.0
cbl2 python-filelock 3.0.12-13 on CBL Mariner 2.0
cbl2 python-filelock 3.0.12-13 on CBL-Mariner 2.0
cbl2 python-filelock 3.0.12-13

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-68146
https://nvd.nist.gov/vuln/detail/CVE-2025-68146

Published: 2025-12-09 · Source: Microsoft · Feed updated: 2026-11-08

This medium severity vulnerability with a CVSS score of 6.3 was published on 2025-12-09 via Microsoft. Affected: azl3 python-filelock 3.14.0-1 on Azure Linux 3.0, cbl2 python-filelock 3.0.12-13 on CBL Mariner 2.0, cbl2 python-filelock 3.0.12-13 on CBL-Mariner 2.0 and 1 more.

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