Vulnerability Details CVE-2026-112914
filelock is a platform-independent file lock for Python. From 4.1.0 until 4.2.1, SoftFileLock can restore a stale marker by name after moving it aside, allowing another local user with rename access in a non-sticky lock directory to swap in a symbolic link and, on a runtime that follows the link and a same-filesystem target, make the lock user hard-link one of its files into the lock directory. This issue is fixed in version 4.2.1.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 0.2%
CVSS Severity
CVSS v3 Score 5.3
Products affected by CVE-2026-112914
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cpe:2.3:a:tox-dev:filelock:*