Vulnerability-Lookup

ubuntu-cve-2026-71193

Vulnerability from osv_ubuntu

Published

2026-08-13 00:00

Modified

2026-08-13 00:00

Summary

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.

Severity

9.6 (Critical)


                    
                      CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2026-71193	REPORT
	https://www.cve.org/CVERecord?id=CVE-2026-71193	REPORT
	https://bugs.launchpad.net/designate/+bug/2160533	REPORT
	https://security.openstack.org/ossa/OSSA-2026-034.html	REPORT
	https://launchpad.net/bugs/2160533	REPORT
	https://www.openwall.com/lists/oss-security/2026/…	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "designate",
            "binary_version": "1:2.1.0-0ubuntu1"
          },
          {
            "binary_name": "designate-agent",
            "binary_version": "1:2.1.0-0ubuntu1"
          },
          {
            "binary_name": "designate-api",
            "binary_version": "1:2.1.0-0ubuntu1"
          },
          {
            "binary_name": "designate-central",
            "binary_version": "1:2.1.0-0ubuntu1"
          },
          {
            "binary_name": "designate-common",
            "binary_version": "1:2.1.0-0ubuntu1"
          },
          {
            "binary_name": "designate-mdns",
            "binary_version": "1:2.1.0-0ubuntu1"
          },
          {
            "binary_name": "designate-pool-manager",
            "binary_version": "1:2.1.0-0ubuntu1"
          },
          {
            "binary_name": "designate-sink",
            "binary_version": "1:2.1.0-0ubuntu1"
          },
          {
            "binary_name": "designate-zone-manager",
            "binary_version": "1:2.1.0-0ubuntu1"
          },
          {
            "binary_name": "python-designate",
            "binary_version": "1:2.1.0-0ubuntu1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "designate",
        "purl": "pkg:deb/ubuntu/designate@1:2.1.0-0ubuntu1?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:1.0.0-0ubuntu1",
        "1:2.0.0~b1-0ubuntu1",
        "1:2.0.0~b2-0ubuntu1",
        "1:2.0.0~b2-0ubuntu2",
        "1:2.0.0~b3-0ubuntu1",
        "1:2.0.0~b3-0ubuntu2",
        "1:2.0.0~rc1-0ubuntu1",
        "1:2.0.0-0ubuntu1",
        "1:2.1.0-0ubuntu1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "designate",
            "binary_version": "1:6.0.1-0ubuntu1.2"
          },
          {
            "binary_name": "designate-agent",
            "binary_version": "1:6.0.1-0ubuntu1.2"
          },
          {
            "binary_name": "designate-api",
            "binary_version": "1:6.0.1-0ubuntu1.2"
          },
          {
            "binary_name": "designate-central",
            "binary_version": "1:6.0.1-0ubuntu1.2"
          },
          {
            "binary_name": "designate-common",
            "binary_version": "1:6.0.1-0ubuntu1.2"
          },
          {
            "binary_name": "designate-mdns",
            "binary_version": "1:6.0.1-0ubuntu1.2"
          },
          {
            "binary_name": "designate-pool-manager",
            "binary_version": "1:6.0.1-0ubuntu1.2"
          },
          {
            "binary_name": "designate-producer",
            "binary_version": "1:6.0.1-0ubuntu1.2"
          },
          {
            "binary_name": "designate-sink",
            "binary_version": "1:6.0.1-0ubuntu1.2"
          },
          {
            "binary_name": "designate-worker",
            "binary_version": "1:6.0.1-0ubuntu1.2"
          },
          {
            "binary_name": "designate-zone-manager",
            "binary_version": "1:6.0.1-0ubuntu1.2"
          },
          {
            "binary_name": "python-designate",
            "binary_version": "1:6.0.1-0ubuntu1.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "designate",
        "purl": "pkg:deb/ubuntu/designate@1:6.0.1-0ubuntu1.2?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:5.0.0-0ubuntu1",
        "1:6.0.0~b1-0ubuntu1",
        "1:6.0.0~b1-0ubuntu2",
        "1:6.0.0~b2-0ubuntu1",
        "1:6.0.0~b3-0ubuntu1",
        "1:6.0.0~rc1-0ubuntu1",
        "1:6.0.0-0ubuntu1",
        "1:6.0.1-0ubuntu1",
        "1:6.0.1-0ubuntu1.2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "designate",
            "binary_version": "1:10.0.2-0ubuntu1"
          },
          {
            "binary_name": "designate-agent",
            "binary_version": "1:10.0.2-0ubuntu1"
          },
          {
            "binary_name": "designate-api",
            "binary_version": "1:10.0.2-0ubuntu1"
          },
          {
            "binary_name": "designate-central",
            "binary_version": "1:10.0.2-0ubuntu1"
          },
          {
            "binary_name": "designate-common",
            "binary_version": "1:10.0.2-0ubuntu1"
          },
          {
            "binary_name": "designate-mdns",
            "binary_version": "1:10.0.2-0ubuntu1"
          },
          {
            "binary_name": "designate-pool-manager",
            "binary_version": "1:10.0.2-0ubuntu1"
          },
          {
            "binary_name": "designate-producer",
            "binary_version": "1:10.0.2-0ubuntu1"
          },
          {
            "binary_name": "designate-sink",
            "binary_version": "1:10.0.2-0ubuntu1"
          },
          {
            "binary_name": "designate-worker",
            "binary_version": "1:10.0.2-0ubuntu1"
          },
          {
            "binary_name": "designate-zone-manager",
            "binary_version": "1:10.0.2-0ubuntu1"
          },
          {
            "binary_name": "python3-designate",
            "binary_version": "1:10.0.2-0ubuntu1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "designate",
        "purl": "pkg:deb/ubuntu/designate@1:10.0.2-0ubuntu1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:9.0.0-0ubuntu1",
        "1:10.0.0~b1~git2019121610.cdac0fc2-0ubuntu1",
        "1:10.0.0~b1~git2019121610.cdac0fc2-0ubuntu2",
        "1:10.0.0~b2~git2020021416.8b5ec128-0ubuntu2",
        "1:10.0.0~b3~git2020032414.dd359ba3-0ubuntu1",
        "1:10.0.0~b3~git2020041012.9ed2623a-0ubuntu1",
        "1:10.0.0-0ubuntu0.20.04.1",
        "1:10.0.1-0ubuntu1",
        "1:10.0.2-0ubuntu1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "designate",
            "binary_version": "1:14.0.4-0ubuntu1"
          },
          {
            "binary_name": "designate-agent",
            "binary_version": "1:14.0.4-0ubuntu1"
          },
          {
            "binary_name": "designate-api",
            "binary_version": "1:14.0.4-0ubuntu1"
          },
          {
            "binary_name": "designate-central",
            "binary_version": "1:14.0.4-0ubuntu1"
          },
          {
            "binary_name": "designate-common",
            "binary_version": "1:14.0.4-0ubuntu1"
          },
          {
            "binary_name": "designate-mdns",
            "binary_version": "1:14.0.4-0ubuntu1"
          },
          {
            "binary_name": "designate-pool-manager",
            "binary_version": "1:14.0.4-0ubuntu1"
          },
          {
            "binary_name": "designate-producer",
            "binary_version": "1:14.0.4-0ubuntu1"
          },
          {
            "binary_name": "designate-sink",
            "binary_version": "1:14.0.4-0ubuntu1"
          },
          {
            "binary_name": "designate-worker",
            "binary_version": "1:14.0.4-0ubuntu1"
          },
          {
            "binary_name": "designate-zone-manager",
            "binary_version": "1:14.0.4-0ubuntu1"
          },
          {
            "binary_name": "python3-designate",
            "binary_version": "1:14.0.4-0ubuntu1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "designate",
        "purl": "pkg:deb/ubuntu/designate@1:14.0.4-0ubuntu1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:13.0.0-0ubuntu1",
        "1:13.0.0+git2021120810.aa798fc0-0ubuntu1",
        "1:13.0.0+git2022011215.bff3d5f6-0ubuntu1",
        "1:13.0.0+git2022030310.8ce022a7-0ubuntu1",
        "1:14.0.0-0ubuntu1",
        "1:14.0.1-0ubuntu1",
        "1:14.0.2-0ubuntu1",
        "1:14.0.3-0ubuntu1",
        "1:14.0.4-0ubuntu1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "designate",
            "binary_version": "1:18.0.0-0ubuntu1"
          },
          {
            "binary_name": "designate-agent",
            "binary_version": "1:18.0.0-0ubuntu1"
          },
          {
            "binary_name": "designate-api",
            "binary_version": "1:18.0.0-0ubuntu1"
          },
          {
            "binary_name": "designate-central",
            "binary_version": "1:18.0.0-0ubuntu1"
          },
          {
            "binary_name": "designate-common",
            "binary_version": "1:18.0.0-0ubuntu1"
          },
          {
            "binary_name": "designate-mdns",
            "binary_version": "1:18.0.0-0ubuntu1"
          },
          {
            "binary_name": "designate-pool-manager",
            "binary_version": "1:18.0.0-0ubuntu1"
          },
          {
            "binary_name": "designate-producer",
            "binary_version": "1:18.0.0-0ubuntu1"
          },
          {
            "binary_name": "designate-sink",
            "binary_version": "1:18.0.0-0ubuntu1"
          },
          {
            "binary_name": "designate-worker",
            "binary_version": "1:18.0.0-0ubuntu1"
          },
          {
            "binary_name": "designate-zone-manager",
            "binary_version": "1:18.0.0-0ubuntu1"
          },
          {
            "binary_name": "python3-designate",
            "binary_version": "1:18.0.0-0ubuntu1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "designate",
        "purl": "pkg:deb/ubuntu/designate@1:18.0.0-0ubuntu1?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:17.0.0-0ubuntu2",
        "1:17.0.1+git2023121308.d90691f3-0ubuntu1",
        "1:17.0.1+git2024011916.002005a4-0ubuntu2",
        "1:18.0.0~rc1-0ubuntu1",
        "1:18.0.0-0ubuntu1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "designate",
            "binary_version": "1:22.0.0-0ubuntu2"
          },
          {
            "binary_name": "designate-agent",
            "binary_version": "1:22.0.0-0ubuntu2"
          },
          {
            "binary_name": "designate-api",
            "binary_version": "1:22.0.0-0ubuntu2"
          },
          {
            "binary_name": "designate-central",
            "binary_version": "1:22.0.0-0ubuntu2"
          },
          {
            "binary_name": "designate-common",
            "binary_version": "1:22.0.0-0ubuntu2"
          },
          {
            "binary_name": "designate-mdns",
            "binary_version": "1:22.0.0-0ubuntu2"
          },
          {
            "binary_name": "designate-pool-manager",
            "binary_version": "1:22.0.0-0ubuntu2"
          },
          {
            "binary_name": "designate-producer",
            "binary_version": "1:22.0.0-0ubuntu2"
          },
          {
            "binary_name": "designate-sink",
            "binary_version": "1:22.0.0-0ubuntu2"
          },
          {
            "binary_name": "designate-worker",
            "binary_version": "1:22.0.0-0ubuntu2"
          },
          {
            "binary_name": "designate-zone-manager",
            "binary_version": "1:22.0.0-0ubuntu2"
          },
          {
            "binary_name": "python3-designate",
            "binary_version": "1:22.0.0-0ubuntu2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "designate",
        "purl": "pkg:deb/ubuntu/designate@1:22.0.0-0ubuntu2?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:21.0.0-0ubuntu1",
        "1:21.0.0-0ubuntu2",
        "1:21.0.0+git20260121.19.145042f4-0ubuntu1",
        "1:22.0.0~rc1-0ubuntu1",
        "1:22.0.0-0ubuntu1",
        "1:22.0.0-0ubuntu2"
      ]
    }
  ],
  "aliases": [],
  "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\u0027s 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": "UBUNTU-CVE-2026-71193",
  "modified": "2026-08-13T00:00:00Z",
  "published": "2026-08-13T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-71193"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-71193"
    },
    {
      "type": "REPORT",
      "url": "https://bugs.launchpad.net/designate/+bug/2160533"
    },
    {
      "type": "REPORT",
      "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"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-71193"
  ]
}

CVE-2026-71193 (GCVE-0-2026-71193)

Vulnerability from cvelistv5 – Published: 2026-08-12 22:17 – Updated: 2026-08-13 13:35

Summary

Severity

9.6 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-13 13:33 UTC

CWE

CWE-863 - Incorrect Authorization

Assigner

mitre

References

3 references

URL	Tags
https://launchpad.net/bugs/2160533	issue-tracking
https://security.openstack.org/ossa/OSSA-2026-034.html	vendor-advisory
https://www.openwall.com/lists/oss-security/2026/…	vendor-advisorymailing-list

Impacted products

1 product

Vendor	Product	Version
OpenStack	Designate	Affected: 1.0.0 , < 20.0.2 (semver) Affected: 21.0.0 , < 21.0.1 (semver) Affected: 22.0.0 , < 22.0.1 (semver)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-71193",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-13T13:33:33.269958Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-13T13:35:19.251Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "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": "22.0.1",
              "status": "affected",
              "version": "22.0.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:openstack:designate:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "20.0.2",
                  "versionStartIncluding": "1.0.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:openstack:designate:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "21.0.1",
                  "versionStartIncluding": "21.0.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:openstack:designate:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "22.0.1",
                  "versionStartIncluding": "22.0.0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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\u0027s 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."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.6,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-863",
              "description": "CWE-863 Incorrect Authorization",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-12T22:17:12.516Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "issue-tracking"
          ],
          "url": "https://launchpad.net/bugs/2160533"
        },
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://security.openstack.org/ossa/OSSA-2026-034.html"
        },
        {
          "tags": [
            "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"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2026-71193",
    "datePublished": "2026-08-12T22:17:12.516Z",
    "dateReserved": "2026-08-05T05:09:31.046Z",
    "dateUpdated": "2026-08-13T13:35:19.251Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

ubuntu-cve-2026-71193

Vulnerability from osv_ubuntu

CVE-2026-71193 (GCVE-0-2026-71193)

Tags

Sightings

Nomenclature