MGASA-2026-0422

Unauthenticated IXFR deltas are applied to the live zone before TSIG verification (CVE-2026-19033). qpcache NOQNAME proof use-after-free crashes recursive resolver (CVE-2026-19662). Use-after-free in query_addnoqnameproof() via the DNS64 filter64 path (CVE-2026-19666). Remote assertion failure via 16-bit length truncation in dns_ncache_add() (CVE-2026-19667). Resource Exhaustion via Excessive DNSSEC Cryptographic Material Matching (CVE-2026-19668). checkwildcard() accepts an out-of-zone NSEC as a wildcard-nonexistence proof (CVE-2026-19941). Message parser retains every identical singleton RDATA, enabling wire-to-work amplification (CVE-2026-75029). named aborts on a TKEY query when the user configuration has no global options statement (CVE-2026-76163). NSEC3 insecure-referral proof can use unrelated cached NSEC3 RRsets (CVE-2026-77119). Unauthenticated remote crash of named via a single DoH SIG(0) request (CVE-2026-77692). Out-of-zone database nodes can become authoritative zone cuts (CVE-2026-78301). Validating resolver can abort while caching a mismatched NOQNAME proof (CVE-2026-80274). SVCB AliasMode additional-data error leaks qpcache references (CVE-2026-81563). Remote CPU denial of service through cached SVCB/HTTPS AliasMode trees (CVE-2026-81736).