{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-71194","assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","state":"PUBLISHED","assignerShortName":"mitre","dateReserved":"2026-08-05T05:15:39.832Z","datePublished":"2026-08-12T22:23:46.951Z","dateUpdated":"2026-08-13T13:32:41.548Z"},"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Designate","repo":"https://opendev.org/openstack/designate","vendor":"OpenStack","versions":[{"lessThan":"20.0.2","status":"affected","version":"1.0.0","versionType":"semver"},{"lessThan":"21.0.1","status":"affected","version":"21.0.0","versionType":"semver"},{"lessThan":"22.0.2","status":"affected","version":"22.0.0","versionType":"semver"}]}],"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. 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."}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":6.8,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-669","description":"CWE-669 Incorrect Resource Transfer Between Spheres","lang":"en","type":"CWE"}]}],"providerMetadata":{"orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","shortName":"mitre","dateUpdated":"2026-08-12T22:23:46.951Z"},"references":[{"tags":["issue-tracking"],"url":"https://launchpad.net/bugs/2160533"},{"tags":["vendor-advisory"],"url":"https://security.openstack.org/ossa/OSSA-2026-034.html"},{"tags":["issue-tracking","vendor-advisory","mailing-list"],"url":"https://www.openwall.com/lists/oss-security/2026/08/11/6"}],"x_generator":{"engine":"CVE-Request-form 0.0.1"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:openstack:designate:*:*:*:*:*:*:*:*","versionStartIncluding":"1.0.0","versionEndExcluding":"20.0.2"},{"vulnerable":true,"criteria":"cpe:2.3:a:openstack:designate:*:*:*:*:*:*:*:*","versionStartIncluding":"21.0.0","versionEndExcluding":"21.0.1"},{"vulnerable":true,"criteria":"cpe:2.3:a:openstack:designate:*:*:*:*:*:*:*:*","versionStartIncluding":"22.0.0","versionEndExcluding":"22.0.2"}]}]}]},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-13T13:31:40.754720Z","id":"CVE-2026-71194","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-08-13T13:32:41.548Z"}}]}}