CVE-2024-34055: Cyrusimap Cyrus Imap

Medium severity, CVSS 6.5. EPSS: 0.8% chance of exploitation in the next 30 days.

Cyrus IMAP before 3.8.3 and 3.10.x before 3.10.0-rc1 allows authenticated attackers to cause unbounded memory allocation by sending many LITERALs in a single command.

Affected products

• Cyrusimap Cyrus Imap: before 3.8.3 (fixed in 3.8.3); version 3.10.0 only

Published 2024-06-05. Last modified 2026-06-17.