HIGH8.8

PYSEC-2026-660

Cross Site Request Forgery in mailman

Quick fix

PYSEC-2026-660 — mailman: upgrade to the fixed version with the command below.

pip install --upgrade 'mailman>=2.1.38'

Details

In GNU Mailman before 2.1.38, a list member or moderator can get a CSRF token and craft an admin request (using that token) to set a new admin password or make other changes.

Are you affected?

Enter the version of the package you're using.

Affected packages

PyPI/mailman

Introduced in: 0Fixed in: 2.1.38

Fixpip install --upgrade 'mailman>=2.1.38'

References

https://nvd.nist.gov/vuln/detail/CVE-2021-44227[ADVISORY]
https://bugs.launchpad.net/mailman/+bug/1952384[WEB]
https://gitlab.com/mailman/mailman[PACKAGE]
https://lists.debian.org/debian-lts-announce/2022/06/msg00011.html[WEB]
https://pypi.org/project/mailman[PACKAGE]
https://github.com/advisories/GHSA-xq58-69h2-765m[ADVISORY]