{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "1.0.0"
              },
              {
                "fixed": "20.0.2"
              },
              {
                "introduced": "21.0.0"
              },
              {
                "fixed": "21.0.1"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "bfe79196c9557559f351ae9a854c73ac757051ee"
            },
            {
              "fixed": "b5255cf54363bdb0775b51cc0fbf38eeb28aecae"
            },
            {
              "introduced": "035453ffd1ba0f574a1d7f23b458222c0fd8fc68"
            },
            {
              "fixed": "2ee5e4a00bc632283a4b5c5da1a94d8f184d1272"
            }
          ],
          "repo": "https://opendev.org/openstack/designate",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "mitre",
    "cwe_ids": [
      "CWE-669"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/71xxx/CVE-2026-71194.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "introduced": "22.0.0"
          },
          {
            "fixed": "22.0.2"
          }
        ],
        "source": "AFFECTED_FIELD"
      }
    ]
  },
  "details": "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.",
  "id": "CVE-2026-71194",
  "modified": "2026-08-15T11:30:56.259377998Z",
  "published": "2026-08-12T22:23:46.951Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://opendev.org/openstack/designate"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/71xxx/CVE-2026-71194.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-71194"
    },
    {
      "type": "ADVISORY",
      "url": "https://security.openstack.org/ossa/OSSA-2026-034.html"
    },
    {
      "type": "REPORT",
      "url": "https://launchpad.net/bugs/2160533"
    },
    {
      "type": "REPORT",
      "url": "https://www.openwall.com/lists/oss-security/2026/08/11/6"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}