CVE-2021-44227: PYSEC-2026-660 - Cross Site Request Forgery in mailman

CVE-2021-44227 · Severity: low · CVSS 3.1 · Published 2026-07-02

Cross Site Request Forgery in mailman

Technologies: mailman (PyPI). Vendors: PyPI.

Quick answers

Is CVE-2021-44227 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2021-44227 being exploited in the wild.
How severe is CVE-2021-44227?
Low severity, with a CVSS score of 3.1, published 2 July 2026.
Which products and versions are affected?
mailman (PyPI) ECOSYSTEM:introduced=0,fixed=2.1.38.
Is there a fix for CVE-2021-44227?
Yes. mailman (PyPI): upgrade to 2.1.38 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2021-44227?
Check whether you run mailman (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

  • mailman (PyPI): upgrade to 2.1.38 or later
    pip install "mailman>=2.1.38"

Affected products

  • mailman (PyPI) ECOSYSTEM:introduced=0,fixed=2.1.38

Identifiers

  • CVE-2021-44227
  • GHSA-xq58-69h2-765m
  • PYSEC-2026-660

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.