CVE-2026-112941

low

Description

filelock is a platform-independent file lock for Python. From 4.1.0 until 4.2.1, SoftReadWriteLock and AsyncSoftReadWriteLock cache a successful check of the <path>.rw lock tree and resolve its names again during later record operations, allowing another local user who can replace that tree after the first acquisition to redirect lock-record writes into directories writable by the lock user. This issue is fixed in version 4.2.1.

References

https://github.com/tox-dev/filelock/security/advisories/GHSA-wfhq-q4j2-c37m

https://github.com/tox-dev/filelock/releases/tag/4.2.1

https://github.com/tox-dev/filelock/pull/842

https://github.com/tox-dev/filelock/commit/bfa066d65a1ba9106f86ee9d027f7588b9c77e03

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-105032

Details

Source: Mitre, NVD

Published: 2026-10-20

Updated: 2026-10-21

Risk Information

CVSS v2

Base Score: 1.7

Vector: CVSS2#AV:L/AC:L/Au:S/C:N/I:P/A:N

Severity: Low

CVSS v3

Base Score: 3.3

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Severity: Low

EPSS

EPSS: 0.00095