Vulnerability-Lookup

UBUNTU-CVE-2026-67229 (CVE-2026-67229)

Vulnerability from osv_ubuntu – Published: 2026-09-24 00:00 – Updated: 2026-09-24 00:00 – Source website

Details

RabbitMQ is a messaging and streaming broker. Prior to versions 3.13.15, 4.0.20, 4.1.11, 4.2.6, and 4.3.0, add_vhost/2 calls rabbit_data_coercion:atomize_keys/1 (the unsafe variant using binary_to_atom) on the vhost metadata map. The 20 MB management body limit fits ~1M+ short keys. Admin-only. An administrator importing a crafted definitions file can crash the node in a single request: a vhosts entry with ~1M unique metadata keys exhausts the atom table during import. Preconditions include administrator tag. This issue is fixed in versions 3.13.15, 4.0.20, 4.1.11, 4.2.6, and 4.3.0.

Severity

6.9 (Medium)


                    
                      CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2026-67229	REPORT
	https://www.cve.org/CVERecord?id=CVE-2026-67229	REPORT
	https://github.com/rabbitmq/rabbitmq-server/secur…	REPORT
	https://github.com/rabbitmq/rabbitmq-server/relea…	REPORT
	https://github.com/rabbitmq/rabbitmq-server/relea…	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "rabbitmq-server",
            "binary_version": "3.5.7-1ubuntu0.16.04.4+esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "rabbitmq-server",
        "purl": "pkg:deb/ubuntu/rabbitmq-server@3.5.7-1ubuntu0.16.04.4+esm2?arch=source\u0026distro=esm-infra/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.5.4-1",
        "3.5.4-3",
        "3.5.4-3.1",
        "3.5.7-1",
        "3.5.7-1ubuntu0.16.04.1",
        "3.5.7-1ubuntu0.16.04.2",
        "3.5.7-1ubuntu0.16.04.4",
        "3.5.7-1ubuntu0.16.04.4+esm1",
        "3.5.7-1ubuntu0.16.04.4+esm2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "rabbitmq-server",
            "binary_version": "3.6.10-1ubuntu0.5"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "rabbitmq-server",
        "purl": "pkg:deb/ubuntu/rabbitmq-server@3.6.10-1ubuntu0.5?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.6.10-1",
        "3.6.10-1ubuntu0.1",
        "3.6.10-1ubuntu0.3",
        "3.6.10-1ubuntu0.4",
        "3.6.10-1ubuntu0.5"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "rabbitmq-server",
            "binary_version": "3.8.3-0ubuntu0.3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "rabbitmq-server",
        "purl": "pkg:deb/ubuntu/rabbitmq-server@3.8.3-0ubuntu0.3?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.7.8-4ubuntu2",
        "3.7.18-1",
        "3.8.2-0ubuntu1",
        "3.8.2-0ubuntu1.1",
        "3.8.2-0ubuntu1.2",
        "3.8.2-0ubuntu1.3",
        "3.8.2-0ubuntu1.4",
        "3.8.2-0ubuntu1.5",
        "3.8.3-0ubuntu0.1",
        "3.8.3-0ubuntu0.2",
        "3.8.3-0ubuntu0.3"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "rabbitmq-server",
            "binary_version": "3.9.27-0ubuntu0.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "rabbitmq-server",
        "purl": "pkg:deb/ubuntu/rabbitmq-server@3.9.27-0ubuntu0.2?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.8.9-3ubuntu1",
        "3.9.8-1",
        "3.9.8-2",
        "3.9.8-3",
        "3.9.8-5",
        "3.9.8-6",
        "3.9.13-1",
        "3.9.13-1ubuntu0.22.04.1",
        "3.9.13-1ubuntu0.22.04.2",
        "3.9.27-0ubuntu0.1",
        "3.9.27-0ubuntu0.2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "rabbitmq-server",
            "binary_version": "3.12.1-1ubuntu1.4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "rabbitmq-server",
        "purl": "pkg:deb/ubuntu/rabbitmq-server@3.12.1-1ubuntu1.4?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.12.1-1",
        "3.12.1-1ubuntu1",
        "3.12.1-1ubuntu1.2",
        "3.12.1-1ubuntu1.4"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "rabbitmq-server",
            "binary_version": "4.0.5-10ubuntu5"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "rabbitmq-server",
        "purl": "pkg:deb/ubuntu/rabbitmq-server@4.0.5-10ubuntu5?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.0.5-8ubuntu2",
        "4.0.5-10ubuntu1",
        "4.0.5-10ubuntu2",
        "4.0.5-10ubuntu3",
        "4.0.5-10ubuntu4",
        "4.0.5-10ubuntu5"
      ]
    }
  ],
  "aliases": [],
  "details": "RabbitMQ is a messaging and streaming broker. Prior to versions 3.13.15, 4.0.20, 4.1.11, 4.2.6, and 4.3.0, add_vhost/2 calls rabbit_data_coercion:atomize_keys/1 (the unsafe variant using binary_to_atom) on the vhost metadata map. The 20 MB management body limit fits ~1M+ short keys. Admin-only. An administrator importing a crafted definitions file can crash the node in a single request: a vhosts entry with ~1M unique metadata keys exhausts the atom table during import. Preconditions include administrator tag. This issue is fixed in versions 3.13.15, 4.0.20, 4.1.11, 4.2.6, and 4.3.0.",
  "id": "UBUNTU-CVE-2026-67229",
  "modified": "2026-09-24T00:00:00Z",
  "published": "2026-09-24T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-67229"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-67229"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-ggrw-qm45-hwpv"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.6"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.3.0"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-67229"
  ]
}

CVE-2026-67229 (GCVE-0-2026-67229)

Vulnerability from cvelistv5 – Published: 2026-09-23 20:22 – Updated: 2026-09-24 14:20

Title

RabbitMQ: Admin-only atom exhaustion: atomize_keys on vhost metadata

Summary

Severity

6.9 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-24 14:20 UTC

CWE

CWE-400 - Uncontrolled Resource Consumption

Assigner

GitHub_M mitre root

References

3 references

URL	Tags
https://github.com/rabbitmq/rabbitmq-server/secur…	x_refsource_CONFIRM
https://github.com/rabbitmq/rabbitmq-server/relea…	x_refsource_MISC
https://github.com/rabbitmq/rabbitmq-server/relea…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
rabbitmq	rabbitmq-server	Affected: >= 3.13.0, < 3.13.15 Affected: >= 4.0.0, < 4.0.20 Affected: >= 4.1.0, < 4.1.11 Affected: >= 4.2.0, < 4.2.6

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-67229",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-24T14:20:28.092524Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-24T14:20:53.127Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-ggrw-qm45-hwpv"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "rabbitmq-server",
          "vendor": "rabbitmq",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 3.13.0, \u003c 3.13.15"
            },
            {
              "status": "affected",
              "version": "\u003e= 4.0.0, \u003c 4.0.20"
            },
            {
              "status": "affected",
              "version": "\u003e= 4.1.0, \u003c 4.1.11"
            },
            {
              "status": "affected",
              "version": "\u003e= 4.2.0, \u003c 4.2.6"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "RabbitMQ is a messaging and streaming broker. Prior to versions 3.13.15, 4.0.20, 4.1.11, 4.2.6, and 4.3.0, add_vhost/2 calls rabbit_data_coercion:atomize_keys/1 (the unsafe variant using binary_to_atom) on the vhost metadata map. The 20 MB management body limit fits ~1M+ short keys. Admin-only. An administrator importing a crafted definitions file can crash the node in a single request: a vhosts entry with ~1M unique metadata keys exhausts the atom table during import. Preconditions include administrator tag. This issue is fixed in versions 3.13.15, 4.0.20, 4.1.11, 4.2.6, and 4.3.0."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 6.9,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "HIGH",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-400",
              "description": "CWE-400: Uncontrolled Resource Consumption",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-23T20:22:40.596Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-ggrw-qm45-hwpv",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-ggrw-qm45-hwpv"
        },
        {
          "name": "https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.6",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.6"
        },
        {
          "name": "https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.3.0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.3.0"
        }
      ],
      "source": {
        "advisory": "GHSA-ggrw-qm45-hwpv",
        "discovery": "UNKNOWN"
      },
      "title": "RabbitMQ: Admin-only atom exhaustion: atomize_keys on vhost metadata"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-67229",
    "datePublished": "2026-09-23T20:22:40.596Z",
    "dateReserved": "2026-07-28T19:50:39.437Z",
    "dateUpdated": "2026-09-24T14:20:53.127Z",
    "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.

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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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UBUNTU-CVE-2026-67229 (CVE-2026-67229)

CVE-2026-67229 (GCVE-0-2026-67229)

Tags

Sightings

Nomenclature

Related by attack behaviour