What is CVE-2026-112915?

CVE-2026-112915 is a medium-severity vulnerability in Tox-Dev Filelock, classified under Uncontrolled Resource Consumption. CVSS score: 5.5/10. Published 2026-10-20.

How severe is CVE-2026-112915?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Resource exhaustion in Tox-Dev Filelock

CVE-2026-112915

filelock is a platform-independent file lock for Python. From 3.20.4 until 4.2.1, ReadWriteLock can open a crafted SQLite lock database without bounding schema and query work, allowing another local user who can replace the database to make acquisition stall or hang; versions from 3.20.4 expose this on initial per-instance opening, and versions from 3.30.0 repeat the exposure on every acquisition. This issue is fixed in version 4.2.1.

Vulnerability class: DoS (Denial of Service)

Published 2026-10-20 · last modified 2026-10-20.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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 >= 3.20.4, < 4.2.1

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption

References

Frequently asked questions

What is CVE-2026-112915?: CVE-2026-112915 is a medium-severity vulnerability in Tox-Dev Filelock, classified under Uncontrolled Resource Consumption. CVSS score: 5.5/10. Published 2026-10-20.
How severe is CVE-2026-112915?: Medium severity. CVSS v3 base score is 5.5 out of 10.