CVE-2026-22701: PYSEC-2026-1374 - filelock Time-of-Check-Time-of-Use (TOCTOU) Symlink Vulnerability in SoftFileLock

CVE-2026-22701 · Severity: low · CVSS 3.1 · Published 2026-07-07

filelock Time-of-Check-Time-of-Use (TOCTOU) Symlink Vulnerability in SoftFileLock

Technologies: filelock (PyPI). Vendors: PyPI.

Quick answers

Is CVE-2026-22701 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-22701 being exploited in the wild.
How severe is CVE-2026-22701?
Low severity, with a CVSS score of 3.1, published 7 July 2026.
Which products and versions are affected?
filelock (PyPI) ECOSYSTEM:introduced=0,fixed=3.20.3.
Is there a fix for CVE-2026-22701?
Yes. filelock (PyPI): upgrade to 3.20.3 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2026-22701?
Check whether you run filelock (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • filelock (PyPI): upgrade to 3.20.3 or later
    pip install "filelock>=3.20.3"

Affected products

  • filelock (PyPI) ECOSYSTEM:introduced=0,fixed=3.20.3

Identifiers

  • CVE-2026-22701
  • GHSA-qmgc-5h2g-mvrw
  • PYSEC-2026-1374

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