unbound: Unbound: ZONEMD verification bypass due to asynchronous DNSSEC resolution

A vulnerability in Unbound allows tampered DNS records in ZONEMD-configured zones below a trust anchor to be served or saved before integrity checks complete. Asynchronous DS/DNSKEY resolution creates a time window where unverified data is processed. If this compromised data is written to disk, i...

CVE-2026-77955 Possible ZONEMD verification bypass window

In NLnet Labs Unbound 1.13.2 up to and including 1.26.1, a vulnerability in ZONEMD configured zones zonemd-check: yes which are located below but not at a trust anchor allow for an attack window where tampered with zone contents are served or stored to disk prior to the ZONEMD integrity check. Th...

CVE-2026-42390 ZONEMD validation can be bypassed

An invalid zone might pass ZONEMD validation while it should not. This is only relevant if ZoneToCache is configured with ZONEMD validation...

powerdns-recursor -- vulnerabilities

PowerDNS Team reports: CVE-2026-3361: ZoneToCache can poison the cache CVE-2026-40012: Information about ECS zero scoped answers might leak to clients that use a specific ECS CVE-2026-42005: Unbounded resource consumption in internal webserver CVE-2026-42387: Insufficient input validation in...