CVE-2021-43332

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-11-12 · updated 2026-06-17
Weakness: CWE-522

Description

In GNU Mailman before 2.1.36, the CSRF token for the Cgi/admindb.py admindb page contains an encrypted version of the list admin password. This could potentially be cracked by a moderator via an offline brute-force attack.

Affected products

Debian Linux: 9.0
GNU Mailman: before 2.1.36 — fixed in 2.1.36

How to fix

Upgrade to a fixed version: GNU Mailman 2.1.36. Check the vendor advisory for mitigations.

References

https://bugs.launchpad.net/mailman/+bug/1949403
https://lists.debian.org/debian-lts-announce/2022/06/msg00011.html
https://mail.python.org/archives/list/mailman-announce%40python.org/message/I2X7PSFXIEPLM3UMKZMGOEO3UFYETGRL/
https://bugs.launchpad.net/mailman/+bug/1949403
https://lists.debian.org/debian-lts-announce/2022/06/msg00011.html
https://mail.python.org/archives/list/mailman-announce%40python.org/message/I2X7PSFXIEPLM3UMKZMGOEO3UFYETGRL/

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