CVE-2005-0080: GNU Mailman

Medium severity, CVSS 5.0. EPSS: 1.4% chance of exploitation in the next 30 days.

The 55_options_traceback.dpatch patch for mailman 2.1.5 in Ubuntu 4.10 displays a different error message depending on whether the e-mail address is subscribed to a private list, which allows remote attackers to determine the list membership for a given e-mail address.

Affected products

• GNU Mailman: version 2.1.5 only
• Ubuntu Ubuntu Linux: version 4.10 only

Published 2005-05-02. Last modified 2026-06-16.