[ CVE-2026-112914 · Published 20 Oct 2026 ]

Vulnerability in tox-dev filelock

CVSS 5.3 EPSS <1%Fix available

[ Description ]Official description

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.

[ Fixes ]Fixes and patches