rabbitmq-server — security advisory

{
  "id": "432692830e67d861c94cc1308e11d66f8785d4bd9cbc7e56466e01ee07fb53fa",
  "url": "https://osv.dev/vulnerability/DEBIAN-CVE-2026-67218",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DEBIAN-CVE-2026-67218",
    "summary": "RabbitMQ is a messaging and streaming broker. Prior to versions 4.0.22, 4.1.11, 4.2.6, and 4.3.0, accept_content/2 at line 56 calls rabbit_stream_manager:create_super_stream/... directly after is_authorized (which only checks the management tag + vhost access via is_authorized_vhost). The stream-protocol equivalent (rabbit_stream_reader.erl create_super_stream handler) calls rabbit_stream_utils:check_super_stream_management_permitted/4 which enforces configure on the exchange and each partition queue. The HTTP handler omits this call entirely. A user with management tag and vhost access , but no configure permission on any resource , can create super-streams (an exchange + N partition stream queues + bindings) via the HTTP API. The native stream-protocol path enforces configure on each resource; the HTTP path does not, creating a privilege escalation from 'can view' to 'can create persistent cluster-wide resources.' Preconditions include rabbitmq_stream_management plugin enabled management tag + vhost access (no resource permissions needed). This issue is fixed in versions 4.0.22, 4.1.11, 4.2.6, and 4.3.0.",
    "evidence": "osv:DEBIAN-CVE-2026-67218",
    "products": [
      {
        "name": {
          "value": "rabbitmq-server",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "4.0.5-10",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.0.5-11",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.0.5-12",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.0.5-13",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.0.5-14",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.0.5-6",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.0.5-6+deb13u1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.0.5-6+deb13u2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.0.5-8",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.0.5-9",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.3.0-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.3.0-2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.3.0-3",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.3.2-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.3.2-2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.3.2-3",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.3.2-4",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.3.2-5",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.3.6-1",
            "evidence": "/affected/0/versions"
          }
        ]
      },
      {
        "name": {
          "value": "rabbitmq-server",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "4.3.0-2",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "4.0.5-10",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "4.0.5-11",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "4.0.5-12",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "4.0.5-13",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "4.0.5-14",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "4.0.5-6",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "4.0.5-8",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "4.0.5-9",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "4.3.0-1",
            "evidence": "/affected/1/versions"
          }
        ]
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "DEBIAN-CVE-2026-67218",
      "aliases": [
        "DEBIAN-CVE-2026-67218"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "rabbitmq-server",
            "purl": "pkg:deb/debian/rabbitmq-server?arch=source&distro=trixie",
            "ecosystem": "Debian:13"
          },
          "versions": [
            "4.0.5-10",
            "4.0.5-11",
            "4.0.5-12",
            "4.0.5-13",
            "4.0.5-14",
            "4.0.5-6",
            "4.0.5-6+deb13u1",
            "4.0.5-6+deb13u2",
            "4.0.5-8",
            "4.0.5-9",
            "4.3.0-1",
            "4.3.0-2",
            "4.3.0-3",
            "4.3.2-1",
            "4.3.2-2",
            "4.3.2-3",
            "4.3.2-4",
            "4.3.2-5",
            "4.3.6-1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-67218.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "4.3.0-2"
                }
              ]
            }
          ],
          "package": {
            "name": "rabbitmq-server",
            "purl": "pkg:deb/debian/rabbitmq-server?arch=source&distro=forky",
            "ecosystem": "Debian:14"
          },
          "versions": [
            "4.0.5-10",
            "4.0.5-11",
            "4.0.5-12",
            "4.0.5-13",
            "4.0.5-14",
            "4.0.5-6",
            "4.0.5-8",
            "4.0.5-9",
            "4.3.0-1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-67218.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        }
      ],
      "modified": "2026-10-23T18:05:03.282014675Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-67218"
      ],
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2026-67218"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-67218",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 424251,
  "published_at": "2026-09-23T21:16:59.93+00:00"
}