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Alerts This Week
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Debian: Dovecot Critical Authentication Flaw DSA-6019-1

debian
Calendar Grey October 5, 2025
Scroller Debian
A critical flaw in Dovecot's authentication cache could log users as incorrect accounts. Update recommended for stability.
A flaw with the authentication cache management was discovered in the Dovecot email server, which could result in users being logged in as the wrong user in certain configurations
Topics%20covered

Topics Covered

security advisory debian information security Dovecot authentication flaw user session issue

Summary

For the stable distribution (trixie), this problem has been fixed in
version 1:2.4.1+dfsg1-6+deb13u1.

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/source-package/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/



Severity
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Topics%20covered

Topics Covered

security advisory debian information security Dovecot authentication flaw user session issue

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