CVE-2026-12244 Heap overflow and crash with crafted SVCB RR

If NSD is configured as secondary for a zone, the primary of that zone can crash NSD with an AXFR containing a DNS message with a special crafted SVCB RR with an rdata size of 65512, that let's an uint16t variable that is used to allocate space needed for the RR wrap because total size 65535,...

CVE-2026-33599

A rogue backend can send a crafted SVCB response to a Discovery of Designated Resolvers request, when requested via either the autoUpgrade Lua option to newServer or autoupgrade YAML settings. DDR upgrade is not enabled by default...

CVE-2026-33599

A rogue backend can send a crafted SVCB response to a Discovery of Designated Resolvers request, when requested via either the autoUpgrade Lua option to newServer or autoupgrade YAML settings. DDR upgrade is not enabled by default...

PT-2026-34443

Name of the Vulnerable Software and Affected Versions PowerDNS Recursor affected versions not specified Description A rogue backend can send a crafted SVCB response to a Discovery of Designated Resolvers request. This occurs when the request is made via the autoUpgrade Lua option to newServer or...