CVE-2026-112937
MEDIUM
NVD
CVSS Score
6.1
Severity
MEDIUM
Published
Oct 20, 2026
Vendor
unknown
Description
filelock is a platform-independent file lock for Python. From 4.1.0 until 4.2.1, ReadWriteLock can remove a randomized .filelock-* private-hard-link directory during cleanup, allowing another local user with rename access in a non-sticky parent to observe a live name or forge a dead-owner sweep name and rename a sibling directory onto it for deletion. This issue is fixed in version 4.2.1.