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Alerts This Week
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Debian DSA-6235-1 dnsdist Critical Denial of Service Attack

debian
Calendar Grey April 28, 2026
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Explore security advisory DSA-6235-1 for Debian dnsdist with critical vulnerabilities fixed. Essential updates recommended.
Multiple security vulnerabilities were discovered in the dnsdist DNS loadbalancer, which could result in denial of service, information disclosure or ACL bypass
Topics%20covered

Topics Covered

security advisory denial of service debian information disclosure acl bypass dnsdist

Summary

For the stable distribution (trixie), these problems have been fixed in
version 1.9.14-0+deb13u1.

We recommend that you upgrade your dnsdist packages.

For the detailed security status of dnsdist please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/dnsdist

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
critical
Lowest
Low
Medium
High
Critical

Package: dnsdist
CVE ID: CVE-2026-0396 CVE-2026-0397 CVE-2026-24028

Topics%20covered

Topics Covered

security advisory denial of service debian information disclosure acl bypass dnsdist

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