CVE catalog

CVE-2026-66078

RabbitMQ is a messaging and streaming broker. From…

[CVE catalog]

RabbitMQ is a messaging and streaming broker. From 3.13.0 until 3.13.15 and 4.0.20 and 4.1.11 and 4.2.6, protected tag bypass via bulk-delete. dELETE /api/users/:name refuses to delete users tagged protected (rabbitmgmtwmuser:deleteresource/2 checks isprotecteduser). POST /api/users/bulk-delete iterates the supplied username list and calls rabbitauthbackendinternal:deleteuser/2 directly , that function has no protected-tag check , so the guard is silently An administrator can delete protected-tagged service accounts via the bulk endpoint, bypassing a safeguard the test suite confirms is rabbitmqmanagement enabled Attacker has the administrator tag A protected-tagged user. This issue is fixed in versions 3.13.15 and 4.0.20 and 4.1.11 and 4.2.6.

Severity
Low · CVSS 2.7CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N
Published
Updated
Source
[NVD] · [CVE record]
EPSS
0.43% · Oct 27, 2026

Projects and upstream resources

Reported versions and fixes

Each observation applies to its named package, distribution, and release. Distribution backports can fix a vulnerability while retaining an older upstream version number.

Version impact has not been established. The original provider fields are retained below.

Provider details and historical evidence
Original provider fields
{
  "package_releases": [
    {
      "name": "rabbitmq-server",
      "status": "fixed",
      "release": "sid",
      "version": "4.3.6-1"
    },
    {
      "name": "rabbitmq-server",
      "status": "fixed",
      "release": "forky",
      "version": "4.3.6-1"
    },
    {
      "name": "rabbitmq-server",
      "status": "vulnerable",
      "release": "trixie",
      "version": "4.0.5-6+deb13u2"
    },
    {
      "name": "rabbitmq-server",
      "status": "vulnerable",
      "release": "bookworm",
      "version": "3.10.8-1.1+deb12u1"
    },
    {
      "name": "rabbitmq-server",
      "status": "vulnerable",
      "release": "bookworm-security",
      "version": "3.10.8-1.1+deb12u1"
    }
  ],
  "fixed_versions": [
    {
      "bug": null,
      "name": "rabbitmq-server",
      "type": "source",
      "origin": null,
      "release": "sid",
      "urgency": "not yet assigned",
      "fixed_version": "4.3.0-2"
    },
    {
      "bug": null,
      "name": "rabbitmq-server",
      "type": "source",
      "origin": null,
      "release": "forky",
      "urgency": "not yet assigned",
      "fixed_version": "4.3.0-2"
    },
    {
      "bug": null,
      "name": "rabbitmq-server",
      "type": "source",
      "origin": null,
      "release": "trixie",
      "urgency": "not yet assigned",
      "fixed_version": ""
    },
    {
      "bug": null,
      "name": "rabbitmq-server",
      "type": "source",
      "origin": null,
      "release": "bookworm",
      "urgency": "not yet assigned",
      "fixed_version": ""
    }
  ],
  "distribution_packages": [
    {
      "name": "rabbitmq_server",
      "ranges": [
        {
          "fixed": "4.2.6",
          "introduced": "4.2.0",
          "last_affected": "",
          "start_excluding": ""
        }
      ],
      "ecosystem": "cpe",
      "fixed_version": "4.2.6",
      "provider_record_id": "NVD-CVE-2026-66078"
    },
    {
      "name": "rabbitmq",
      "ranges": [
        {
          "type": "SEMVER",
          "events": [
            {
              "introduced": "3.13.0"
            },
            {
              "fixed": "3.13.15"
            },
            {
              "introduced": "4.0.0"
            },
            {
              "fixed": "4.0.20"
            },
            {
              "introduced": "4.1.0"
            },
            {
              "fixed": "4.1.11"
            },
            {
              "introduced": "4.2.0"
            },
            {
              "fixed": "4.2.6"
            }
          ]
        }
      ],
      "versions": [],
      "ecosystem": "Bitnami",
      "fixed_version": "3.13.15",
      "provider_record_id": "BIT-RABBITMQ-2026-66078"
    }
  ]
}

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

  • [rabbitmq-server]Unknown
    Details (4)

    • 3.10.8-1.1+deb12u1 · all · bookworm

      Affected

      nvd · rabbitmq-server · debian · bookworm

    • 3.10.8-1.1+deb12u1 · all · bookworm

      Affected

      nvd · rabbitmq-server · debian · bookworm

    • 3.10.8-1.1+deb12u1 · all · bookworm-security

      Affected

      nvd · rabbitmq-server · debian · bookworm

    • 3.10.8-1.1+deb12u1 · all · bookworm-security

      Affected

      nvd · rabbitmq-server · debian · bookworm

Observed:

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]