Home / mailings [SECURITY] [DSA 6313-1] dovecot security update
Posted on 31 May 2026
Debian Security Advisory- -------------------------------------------------------------------------
Debian Security Advisory DSA-6313-1 security@debian.org
https://www.debian.org/security/ Moritz Muehlenhoff
May 31, 2026 https://www.debian.org/security/faq
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Package : dovecot
CVE ID : CVE-2026-33603 CVE-2026-40016 CVE-2026-40020
CVE-2026-42006 CVE-2026-27851
Multiple vulnerabilities have been discovered in the Dovecot IMAP server
which way result in denial of service, SQL injection or
man-in-the-midddle attacks
For the oldstable distribution (bookworm), these problems have been fixed
in version 1:2.3.19.1+dfsg1-2.1+deb12u6.
For the stable distribution (trixie), these problems have been fixed in
version 1:2.4.1+dfsg1-6+deb13u6.
We recommend that you upgrade your dovecot packages.
For the detailed security status of dovecot please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/dovecot
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/
Mailing list: debian-security-announce@lists.debian.org
