CVE-2026-43860: Mutt

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

mutt before 2.3.2 sometimes truncates the hash_passwd by one byte for IMAP auth_cram MD5 digest.

Affected products

• Mutt Mutt: before 2.3.2 (fixed in 2.3.2)

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