6.1

CVE-2026-112934: tox-dev filelock UNIX Hard Link

CVSS: 6.1v3.1MediumUndergoing analysis
AliasesDEBIAN-CVE-2026-112934
Published 20-10-2026Last modified 20-10-2026
Open JSON

Vulnerability summary

CVE-2026-112934 is a medium (CVSS 6.1) UNIX Hard Link vulnerability in tox-dev filelock.

Overall risk
24/100
0100
Low · default modelHow is this calculated?
CVSS score
6.1/10
010
Medium · v3.1 (CVE.org)
EPSS score
Not scored
0%100%
No EPSS score yet
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 20-10-2026
    PublishedVulnerability first disclosed.

Description

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.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

No EPSS score has been published for this record yet.

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • python-filelockAll versions (No fix recorded)
Tox-dev1 product

2 vendors · 2 products

References

5 links