CVE-2026-47088 – Cyrus IMAP Heap Memory Exposure

CVE ID :CVE-2026-47088

Published : July 16, 2026, 7:16 p.m. | 18 minutes ago

Description :An issue was discovered in cyrus-imapd in Cyrus IMAP through 3.12.2. There is heap exposure in nested MIME comment parsing. An authenticated IMAP user could craft an email message containing an RFC 822 comment ending with a backslash. When parsing the message, the server would read past the message’s end in memory, and read into the heap, returning the read content to the user.

Severity: 3.1 | LOW

Visit the link for more details, such as CVSS details, affected products, timeline, and more…