{"id":"CVE-2026-71194","state":"PUBLISHED","title":"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","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. BIND9 views do not mitigate this issue as mDNS is a shared service upstream of any view configuration.","publishedAt":"2026-08-12T22:23:46.951Z","updatedAt":"2026-08-13T13:32:41.548Z","severity":{"score":6.8,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H","source":"mitre"},"assigner":"mitre","products":["OpenStack Designate"],"affected":[{"vendor":"OpenStack","product":"Designate","defaultStatus":"unaffected","versions":[{"version":"1.0.0","status":"affected","lessThan":"20.0.2","versionType":"semver"},{"version":"21.0.0","status":"affected","lessThan":"21.0.1","versionType":"semver"},{"version":"22.0.0","status":"affected","lessThan":"22.0.2","versionType":"semver"}],"repo":"https://opendev.org/openstack/designate"}],"references":["https://launchpad.net/bugs/2160533","https://security.openstack.org/ossa/OSSA-2026-034.html","https://www.openwall.com/lists/oss-security/2026/08/11/6"],"weaknesses":["CWE-669"],"ingestedAt":"2026-10-29T20:12:49.727Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/71xxx/CVE-2026-71194.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-71194","state":"PUBLISHED","datePublished":"2026-08-12T22:23:46.951Z","dateUpdated":"2026-08-13T13:32:41.548Z","assignerShortName":"mitre","assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateReserved":"2026-08-05T05:15:39.832Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"In OpenStack Designate before 22.0.2, the mDNS handler performs pool-blind lookups when resolving record queries and NOTIFY requests. 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