CVE-2026-47088
published 2026-07-16CVE-2026-47088: 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…
PriorityP413low3.1CVSS 3.1
AVNACHPRLUINSUCLINAN
EPSS
0.17%
6.4th percentile
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.
Affected
1 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| cyrusimap | cyrus_imap | < 3.12.3 | 3.12.3 |
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Bugzilla
CVE-2026-47088 cyrus-imapd: Cyrus IMAP: Information disclosure via heap exposure in MIME comment parsing [fedora-all]
bugzilla·2026-07-17·CVSS 3.1
CVE-2026-47088 [LOW] CVE-2026-47088 cyrus-imapd: Cyrus IMAP: Information disclosure via heap exposure in MIME comment parsing [fedora-all]
CVE-2026-47088 cyrus-imapd: Cyrus IMAP: Information disclosure via heap exposure in MIME comment parsing [fedora-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
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.
Bugzilla
CVE-2026-47088 cyrus-imapd: Cyrus IMAP: Information disclosure via heap exposure in MIME comment parsing
bugzilla·2026-07-16·CVSS 3.1
CVE-2026-47088 [LOW] CVE-2026-47088 cyrus-imapd: Cyrus IMAP: Information disclosure via heap exposure in MIME comment parsing
CVE-2026-47088 cyrus-imapd: Cyrus IMAP: Information disclosure via heap exposure in MIME comment parsing
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.
2026-07-16
Published