GNU Mailman vulnerabilities (CVE)

CVE records published for GNU Mailman, newest first. Follow to get an email when a new one appears.

3 results
5.3Medium
CVE-2025-43921
GNU Mailman

GNU Mailman 2.1.39, as bundled in cPanel (and WHM), allows unauthenticated attackers to create lists via the /mailman/create endpoint. NOTE: multiple third parties report that they are unable to reproduce this, regardless of whether cPanel or WHM is used.

5.4Medium
CVE-2025-43920
GNU Mailman

GNU Mailman 2.1.39, as bundled in cPanel (and WHM), in certain external archiver configurations, allows unauthenticated attackers to execute arbitrary OS commands via shell metacharacters in an email Subject line. NOTE: multiple third parties report that they…

5.8Medium
CVE-2025-43919
GNU Mailman

GNU Mailman 2.1.39, as bundled in cPanel (and WHM), allows unauthenticated attackers to read arbitrary files via ../ directory traversal at /mailman/private/mailman (aka the private archive authentication endpoint) via the username parameter. NOTE: multiple t…

1.4%EPSS