CVE-2026-33608

Name	CVE-2026-33608
Description	An attacker can send a notify request that causes a new secondary domain to be added to the bind backend, but causes said backend to update its configuration to an invalid one, leading to the backend no longer able to run on the next restart, requiring manual operation to fix it.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
pdns (PTS)	bullseye	4.4.1-1	vulnerable
	bookworm	4.7.3-2	vulnerable
	trixie	4.9.7-1	vulnerable
	forky, sid	5.0.3-1	vulnerable

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
pdns	source	(unstable)	(unfixed)

Notes

https://docs.powerdns.com/authoritative/security-advisories/powerdns-advisory-2026-05.html#incomplete-domain-name-sanitization-during-bind-autosecondary-zone-transfer