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Fedora 42 PowerDNS Major Security Advisory 2026-abd12345xy

fedora
Calendar Grey May 6, 2026
Dist Fedora Esm H88
Critical update for PowerDNS on Fedora 42 addresses severe security issues related to Denial of Service and database corruption.
Update to 5.0.4 Release notes: https://doc.powerdns.com/authoritative/changelog/5.0.html#change-5.0.4 Security advisory: https://docs.powerdns.com/authoritative/security- advisorie...

Summary

The PowerDNS Nameserver is a modern, advanced and high performance

authoritative-only name server. It is written from scratch and conforms

to all relevant DNS standards documents.

Furthermore, PowerDNS interfaces with almost any database.

Update Information:

Update to 5.0.4 Release notes: https://doc.powerdns.com/authoritative/changelog/5.0.html#change-5.0.4 Security advisory: https://docs.powerdns.com/authoritative/security- advisories/powerdns-advisory-2026-05.html

Topics%20covered

Topics Covered

security advisory denial of service security issue fedora update powerdns

Change Log

* Sun Apr 26 2026 Morten Stevens - 5.0.4-1 - Update to 5.0.4 * Fri Jan 16 2026 Fedora Release Engineering - 5.0.2-3 - Rebuilt for https://fedoraproject.org/wiki/Fedora_44_Mass_Rebuild * Mon Jan 12 2026 Jonathan Wakely - 5.0.2-2 - Rebuilt for Boost 1.90 * Thu Dec 18 2025 Morten Stevens - 5.0.2-1 - Update to 5.0.2 * Fri Dec 5 2025 Orion Poplawski - 5.0.1-2 - Rebuild for yaml-cpp 0.8 (epel10) * Thu Oct 30 2025 Morten Stevens - 5.0.1-1 - Update to 5.0.1 - Enable backend lmdb * Thu Sep 25 2025 Morten Stevens - 5.0.0-1 - Update to 5.0.0

References


[ 1 ] Bug #2461770 - CVE-2026-33610 pdns: PowerDNS: Denial of Service due to file descriptor exhaustion from rogue primary server DNS update requests [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=2461770 [ 2 ] Bug #2461772 - CVE-2026-33611 pdns: PowerDNS: Database corruption due to invalid record data [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=2461772 [ 3 ] Bug #2461775 - CVE-2026-33609 pdns: PowerDNS: Information disclosure via incomplete LDAP query escaping [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=2461775

Update Instructions

This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2026-edc32576bb' at the command line. For more information, refer to the dnf documentation available at http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label

Severity
critical
Lowest
Low
Medium
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Critical

Name: pdns
Product: Fedora 42
Version: 5.0.4
Release: 1.fc42
URL: http://powerdns.com
Summary: A modern, advanced and high performance authoritative-only name server

Topics%20covered

Topics Covered

security advisory denial of service security issue fedora update powerdns

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