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CVE-2026-112911

filelock: StrictSoftFileLock and SoftReadWriteLock adopt a protocol directory another user created first, losing mutual exclusion PUBLISHED

Description (CNA)

filelock is a platform-independent file lock for Python. From 3.30.0 until 4.2.1, StrictSoftFileLock versions from 3.30.0 and SoftReadWriteLock versions from 4.0.0 can adopt a protocol directory created first by another local user in a shared parent directory, allowing that user to alter protocol state and admit concurrent holders. This issue is fixed in version 4.2.1.

Affected (CNA)

Vendor / productVersions
tox-dev / filelockaffected >= 3.30.0, < 4.2.1

CWE

CWE-283

References