CVE-2026-47088
LOW
INFO
Priority: 0.01
BB Relevance:
46/100
Published: 2026-07-16
Modified: 2026-10-24
First seen: 2026-10-29
Status: active
Attack Surface
Network
No Interaction
CVSS Vector Breakdown
AV:
Network
AC:
High
PR:
Low
UI:
None
S:
Unchanged
C:
Low
I:
None
A:
None
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.