{"schemaVersion":3,"id":"CVE-2026-71194","aliases":["UBUNTU-CVE-2026-71194","DEBIAN-CVE-2026-71194"],"status":"published","duplicateOf":null,"title":null,"description":"In OpenStack Designate before 22.0.2, the mDNS handler performs pool-blind lookups when resolving record queries and NOTIFY requests. When two zones with the same name exist across different pools, the lookup fails with a deterministic error, causing the handler to return REFUSED for all DNS queries through that path. The _handle_notify path is exploitable via a single unauthenticated UDP packet. This is independently reachable through the cross-tenant zone overlap described in a different recent CVE, and also affects legitimate same-tenant cross-pool configurations. 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