CVE-2026-78301

A malformed zone may contain an NS or DNAME node above its origin, which named treats as a zone cut. If an attacker inserts a malformed zone into a BIND authoritative server e.g., via zone transfer, queries for names inside the configured zone then lose authoritative status and return an...

CVE-2026-78301

CVE-2026-78301 affects ISC BIND 9 (named). A malformed zone containing an NS or DNAME node above its origin is incorrectly treated as a zone cut. An attacker who inserts such a zone into a BIND authoritative server (e.g., via zone transfer) causes queries for names inside the zone to lose authori...