CVE-2026-50248

Beschreibung

In NLnet Labs Unbound 1.7.0 up to and including 1.25.1, when an auth/rpz zone has a configured primary hostname that resolves to BOGUS A/AAAA, it is still considered as a possible XFR endpoint. A malicious actor that can spoof the hostname-s A/AAAA record (no valid RRSIG required) becomes the zone-s XFR primary and can replaces the entire zone/the resolver-s entire response policy.