MEDIUM 5.3 Microsoft
CVE-2026-22701
filelock Time-of-Check-Time-of-Use (TOCTOU) Symlink Vulnerability in SoftFileLock
Microsoft Security Update 2026-Jan: filelock Time-of-Check-Time-of-Use (TOCTOU) Symlink Vulnerability in SoftFileLock
Affected Products
- cbl2 python-filelock 3.0.12-13 on CBL Mariner 2.0
- azl3 python-filelock 3.20.1-1 on Azure Linux 3.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-22701
- https://nvd.nist.gov/vuln/detail/CVE-2026-22701
This medium severity vulnerability with a CVSS score of 5.3 was published on 2026-01-13 via Microsoft. Affected: cbl2 python-filelock 3.0.12-13 on CBL Mariner 2.0, azl3 python-filelock 3.20.1-1 on Azure Linux 3.0.
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