Summary
Dovecot is an IMAP server for Linux and other UNIX-like systems, written primarily with security in mind. It also contains a small POP3 server, and supports e-mail in either the maildir or mbox format. The SQL drivers and authentication plug-ins are provided as subpackages.
Security Fix(es):
* dovecot: Dovecot: Denial of Service via excessive IMAP bracing (CVE-2026-42006)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Fixed packages 1
| Release | Package | Fixed in |
|---|---|---|
| Rocky Linux · 10 | dovecot | 1:2.3.21-19.el10_2.1 |
Vulnerabilities 1
-
Medium 4.3
An attacker can cause uncontrolled memory usage with excessive bracing over IMAP. The fix in CVE-2026-27857 was incompl…
References
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report
https://bugzilla.redhat.com/show_bug.cgi?id=2476476