CVE-2026-112915: tox-dev filelock Uncontrolled Resource Consumption
CVSS: 5.5v3.1MediumReceived
Published 20-10-2026Last modified 20-10-2026
Vulnerability summary
CVE-2026-112915 is a medium (CVSS 5.5) Uncontrolled Resource Consumption vulnerability in tox-dev filelock.
CVSS score
5.5/10
010
Medium · v3.1 (CVE.org)EPSS score
Not scored
0%100%
No EPSS score yetKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 20-10-2026PublishedVulnerability first disclosed.
- 20-10-2026Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
2 scores · 2 sources · 1 versionMedium 5.5Preferred score · CVE.org (CNA)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HSourcesAll 2 agree
- NVDNIST5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
No EPSS score has been published for this record yet.
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Tox-dev1 product
- filelock≥ 3.20.4, < 4.2.1
1 vendor · 1 product
References
4 links- github.com/tox-dev/filelock/security/advisories/GHSA-cwqr-hh33-gh44X Refsource CONFIRM
- github.com/tox-dev/filelock/pull/834X Refsource MISC
- github.com/tox-dev/filelock/releases/tag/4.2.1X Refsource MISC