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Fedora 43 pdns 5.0.4 Security Advisory Denial of Service CVE-2026-33610

fedora
Calendar Grey May 6, 2026
Scroller Fedora
Security advisory for Fedora 43 pdns 5.0.4 update addressing Denial of Service and information disclosure risks.
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 fedora information disclosure pdns 5.0.4

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

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-b47d3e7e16' 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
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Name: pdns
Product: Fedora 43
Version: 5.0.4
Release: 1.fc43
URL: http://powerdns.com
Summary: A modern, advanced and high performance authoritative-only name server

Topics%20covered

Topics Covered

security advisory denial of service fedora information disclosure pdns 5.0.4

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