CVE-2026-112911

medium

Description

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.

References

https://github.com/tox-dev/filelock/security/advisories/GHSA-9c4x-gm8v-wgc4

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

https://github.com/tox-dev/filelock/pull/839

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

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-105018

Details

Source: Mitre, NVD

Published: 2026-10-20

Updated: 2026-10-21

Risk Information

CVSS v2

Base Score: 5.5

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

Severity: Medium

CVSS v3

Base Score: 6.3

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

Severity: Medium

EPSS

EPSS: 0.00107