CVE-2026-13321

The CVE relates to BIND DNSSEC validation: the resolver accepts validly-signed NSEC records whose Next Domain Name points outside the signer's zone, enabling potential DNSSEC validation bypass. Affected are BIND 9 releases across multiple series: 9.11.0–9.18.50, 9.20.0–9.20.24, 9.21.0–9.21.23, an...