Vulnerability Details CVE-2026-112936
filelock is a platform-independent file lock for Python. From 3.20.4 until 4.0.9, ReadWriteLock and AsyncReadWriteLock versions from 3.20.4 resolve the lock path and pass it to SQLite without rejecting a final symbolic link, allowing another local user who can create names in the lock directory to redirect database creation and locking or split mutual exclusion between targets. This issue is fixed in version 4.0.9.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 11.6%
CVSS Severity
CVSS v3 Score 6.1
References
Products affected by CVE-2026-112936
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cpe:2.3:a:tox-dev:filelock:3.21.0
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cpe:2.3:a:tox-dev:filelock:3.21.1
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cpe:2.3:a:tox-dev:filelock:3.21.2
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cpe:2.3:a:tox-dev:filelock:3.22.0
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cpe:2.3:a:tox-dev:filelock:3.23.0
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cpe:2.3:a:tox-dev:filelock:3.24.0
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cpe:2.3:a:tox-dev:filelock:3.24.1
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cpe:2.3:a:tox-dev:filelock:3.24.2
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cpe:2.3:a:tox-dev:filelock:3.24.3
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cpe:2.3:a:tox-dev:filelock:3.24.4
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cpe:2.3:a:tox-dev:filelock:3.25.0