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Debian Trixie pdns Important Denial of Service ACL Fix DSA-6233-1

debian
Calendar Grey April 28, 2026
Debian Logo
Multiple vulnerabilities in dnsdist DNS loadbalancer fixed in Debian Trixie; upgrade recommended to fix security issues.
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 important information disclosure dnsdist trixie

Summary

For the stable distribution (trixie), these problems have been fixed in
version 4.9.14-0+deb13u1.

We recommend that you upgrade your pdns packages.

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

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
important
Lowest
Low
Medium
High
Critical

Package: pdns
CVE ID: CVE-2026-33257 CVE-2026-33260 CVE-2026-33608

Topics%20covered

Topics Covered

security advisory denial of service important information disclosure dnsdist trixie

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