PT-2026-60556 · Cyrusimap · Cyrus Imap

CVE-2026-47088 · Published 2026-07-16 · Updated 2026-07-16

NVD

CVSS v3.1

3.1

Low

Base vector

AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N

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.

Fix

Buffer Over-read

Weakness Enumeration

CWE-126

Related Identifiers

CVE-2026-47088

Affected Products

Cyrus Imap

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2026-47088 · Security Note
• https://cyrusimap.org/imap/download/release-notes/index.html · Note
• https://cyrusimap.org/3.12/imap/download/release-notes/3.12/x/3.12.3.html · Note