{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "1.0.0"
              },
              {
                "fixed": "20.0.2"
              },
              {
                "introduced": "21.0.0"
              },
              {
                "fixed": "21.0.1"
              },
              {
                "introduced": "22.0.0"
              },
              {
                "fixed": "22.0.1"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "bfe79196c9557559f351ae9a854c73ac757051ee"
            },
            {
              "fixed": "b5255cf54363bdb0775b51cc0fbf38eeb28aecae"
            },
            {
              "introduced": "035453ffd1ba0f574a1d7f23b458222c0fd8fc68"
            },
            {
              "fixed": "2ee5e4a00bc632283a4b5c5da1a94d8f184d1272"
            },
            {
              "introduced": "ee2add08760a436d0173535699a6016ef18e03ae"
            },
            {
              "fixed": "d4b703bb4637e6e740e4b401eac6e9308769c39f"
            }
          ],
          "repo": "https://opendev.org/openstack/designate",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "mitre",
    "cwe_ids": [
      "CWE-863"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/71xxx/CVE-2026-71193.json"
  },
  "details": "In OpenStack Designate before 22.0.1, zone creation checks (_is_subzone, _is_superzone, and the duplicate-zone DB constraint) are scoped to the target pool only. An authenticated user can bypass these checks by scheduling a zone to a different pool via the AttributeFilter scheduler, creating an overlapping zone that conflicts with another tenant's zone. This enables cross-tenant DNS hijack (redirecting traffic to attacker-controlled IPs) and DNS denial of service (NODATA responses). Exploitation requires a multi-pool deployment with AttributeFilter enabled in scheduler_filters, which is a non-default but documented and supported configuration for self-service tiering.",
  "id": "CVE-2026-71193",
  "modified": "2026-08-14T03:51:39.343958436Z",
  "published": "2026-08-12T22:17:12.516Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://opendev.org/openstack/designate"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/71xxx/CVE-2026-71193.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-71193"
    },
    {
      "type": "ADVISORY",
      "url": "https://security.openstack.org/ossa/OSSA-2026-034.html"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.openwall.com/lists/oss-security/2026/08/11/6"
    },
    {
      "type": "REPORT",
      "url": "https://launchpad.net/bugs/2160533"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}