Home / mailings [SECURITY] [DSA 6234-1] pdns-recursor security update
Posted on 28 April 2026
Debian Security Advisory- -------------------------------------------------------------------------
Debian Security Advisory DSA-6234-1 security@debian.org
https://www.debian.org/security/ Moritz Muehlenhoff
April 28, 2026 https://www.debian.org/security/faq
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Package : pdns-recursor
CVE ID : CVE-2026-33257 CVE-2026-33258 CVE-2026-33259
CVE-2026-33260 CVE-2026-33261 CVE-2026-33600
CVE-2026-33601
Multiple vulnerabiliites have been discovered in PDNS Recursor, a
resolving name server, which could result in denial of service.
For the stable distribution (trixie), these problems have been fixed in
version 5.2.9-0+deb13u1.
We recommend that you upgrade your pdns-recursor packages.
For the detailed security status of pdns-recursor please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/pdns-recursor
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
