Link Following Affecting python-filelock package, versions *


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.12% (2nd percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-DEBIAN12-PYTHONFILELOCK-21281848
  • published21 Oct 2026
  • disclosed20 Oct 2026

Introduced: 20 Oct 2026

NewCVE-2026-112940  (opens in a new tab)
CWE-59  (opens in a new tab)

How to fix?

There is no fixed version for Debian:12 python-filelock.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python-filelock package and not the python-filelock package as distributed by Debian. See How to fix? for Debian:12 relevant fixed versions and status.

filelock is a platform-independent file lock for Python. From 3.20.4 until 4.2.1, ReadWriteLock let SQLite reopen the database and side files by name; on POSIX systems an attacker with rename access in a non-sticky parent can swap those names to cause overwrite or unlink operations, while a writable adjacent hot journal is additionally required for attacker-chosen content overwrites. This issue is fixed in version 4.2.1.

CVSS Base Scores

version 3.1