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.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 9 | mailman | 1:2.1.23-1+deb9u8 | DLA-3049-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | mailman | 1:2.1.26-1ubuntu0.5 | USN-5151-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | mailman | 1:2.1.29-1ubuntu3.1+esm1 | USN-5151-2 |
| Ubuntu Pro 16.04 LTS | mailman | 1:2.1.20-1ubuntu0.6+esm2 | USN-5151-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP5 | mailman | 2.1.17-3.26.1 | SUSE-SU-2022:1886-1 |
| SLES 12 SP4 | mailman | 2.1.17-3.26.1 | SUSE-SU-2022:1886-1 |
| SLES 12 SP3 | mailman | 2.1.17-3.26.1 | SUSE-SU-2022:1886-1 |
| SLES 12 SP2 | mailman | 2.1.17-3.26.1 | SUSE-SU-2022:1886-1 |
Show 8 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP5 | mailman | 2.1.17-3.26.1 | SUSE-SU-2022:1886-1 |
| SLES for SAP 12 SP4 | mailman | 2.1.17-3.26.1 | SUSE-SU-2022:1886-1 |
| SLES for SAP 12 SP3 | mailman | 2.1.17-3.26.1 | SUSE-SU-2022:1886-1 |
| SUSE OpenStack Cloud Crowbar 9 | mailman | 2.1.17-3.26.1 | SUSE-SU-2022:1886-1 |
| SUSE OpenStack Cloud Crowbar 8 | mailman | 2.1.17-3.26.1 | SUSE-SU-2022:1886-1 |
| SUSE OpenStack Cloud 9 | mailman | 2.1.17-3.26.1 | SUSE-SU-2022:1886-1 |
| SUSE OpenStack Cloud 8 | mailman | 2.1.17-3.26.1 | SUSE-SU-2022:1886-1 |
| SUSE HPE Helion OpenStack 8 | mailman | 2.1.17-3.26.1 | SUSE-SU-2022:1886-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | mailman | 3:2.1.15-30.amzn2.2.1 | ALAS2-2023-2370 |
Advisories 8
- WID-SEC-2022-0432 Xerox FreeFlow Print Server: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 11, 2026
- WID-SEC-2022-0302 Xerox FreeFlow Print Server: Mehrere Schwachstellen ermöglichen Ausführen von beliebigem Programmcode mit Administratorrechten BSI CERT-Bund (WID) · Oct 11, 2026
- USN-5151-1 mailman vulnerabilities Ubuntu Security Notices (USN) · Jun 25, 2026
- DLA-3049-1 mailman - security update Debian Security (DSA / DLA) · Mar 9, 2026
- USN-5151-2 mailman vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- SUSE-SU-2022:1886-1 Security update for mailman SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2022-0244 GNU Mailman: Mehrere Schwachstellen BSI CERT-Bund (WID) · Dec 4, 2023
- ALAS2-2023-2370 Moderate: mailman security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Dec 4, 2023