What is CVE-2026-112911?

CVE-2026-112911 is a medium-severity vulnerability in Tox-Dev Filelock, classified under CWE-283. CVSS score: 6.3/10. Published 2026-10-20.

How severe is CVE-2026-112911?

Medium severity. CVSS v3 base score is 6.3 out of 10.

Vulnerability in Tox-Dev Filelock

CVE-2026-112911

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.

Published 2026-10-20.

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Tox-Dev Filelock — versions >= 3.30.0, < 4.2.1

Weakness classification (CWE)

CWE-283

References

Frequently asked questions

What is CVE-2026-112911?: CVE-2026-112911 is a medium-severity vulnerability in Tox-Dev Filelock, classified under CWE-283. CVSS score: 6.3/10. Published 2026-10-20.
How severe is CVE-2026-112911?: Medium severity. CVSS v3 base score is 6.3 out of 10.