Vulnerability in Tox-Dev Filelock
CVE-2026-112934
filelock is a platform-independent file lock for Python. From 4.0.0 until 4.2.1, SoftReadWriteLock refreshes holder records by name, allowing another local user with rename access to the lock directory to replace a record with a named pipe and stall the lock, or under a permissive hard-link policy to link a reachable target file and cause the lock user to write through it. This issue is fixed in version 4.2.1.
Published .
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:L/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 >= 4.0.0, < 4.2.1
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-112934?
- CVE-2026-112934 is a medium-severity vulnerability in Tox-Dev Filelock, classified under UNIX Hard Link. CVSS score: 6.1/10. Published 2026-10-20.
- How severe is CVE-2026-112934?
- Medium severity. CVSS v3 base score is 6.1 out of 10.