What is CVE-2026-112936?

CVE-2026-112936 is a medium-severity vulnerability in Tox-Dev Filelock, classified under Improper Link Resolution Before File Access. CVSS score: 6.1/10. Published 2026-10-20.

How severe is CVE-2026-112936?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Vulnerability in Tox-Dev Filelock

CVE-2026-112936

filelock is a platform-independent file lock for Python. From 3.20.4 until 4.0.9, ReadWriteLock and AsyncReadWriteLock versions from 3.20.4 resolve the lock path and pass it to SQLite without rejecting a final symbolic link, allowing another local user who can create names in the lock directory to redirect database creation and locking or split mutual exclusion between targets. This issue is fixed in version 4.0.9.

Published 2026-10-20.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L.

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 >= 3.20.4, < 4.0.9

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-112936?: CVE-2026-112936 is a medium-severity vulnerability in Tox-Dev Filelock, classified under Improper Link Resolution Before File Access. CVSS score: 6.1/10. Published 2026-10-20.
How severe is CVE-2026-112936?: Medium severity. CVSS v3 base score is 6.1 out of 10.