CVE-2026-43862: Mutt

Low severity, CVSS 3.7. EPSS: 0.3% chance of exploitation in the next 30 days.

In mutt before 2.3.2, the imap_auth_gss security level is mishandled.

Affected products

• Mutt Mutt: before 2.3.2 (fixed in 2.3.2)

Published 2026-05-04. Last modified 2026-06-17.