Catalogue CVE

CVE-2026-67222

RabbitMQ is a messaging and streaming broker. From…

RabbitMQ is a messaging and streaming broker. From 3.13.0 until 3.13.15, 4.0.20, 4.1.11, and 4.2.6, mechanisms/1 applied list_to_atom/1 to every colon-delimited token in an attacker-controlled auth_mechanism value, permanently consuming Erlang VM atoms and allowing the node to be crashed with a large request. Exploitation requires the Shovel or Federation plugin to be in use, and setting auth_mechanism requires the policymaker tag. This issue is fixed in versions 3.13.15, 4.0.20, 4.1.11, and 4.2.6.

Gravité: Medium · CVSS 5.9CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Published: Jul 9, 2026, 10:00:00 PM UTC
Updated: Sep 25, 2026, 5:17:10 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.32% · Oct 27, 2026

Projects and upstream resources

[rabbitmq-server][Source-reported homepage]

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.

Distribution / release	Package	Version	Status	Source
Debiansid	rabbitmq-server	`4.3.0-2`	FixedDistribution-reported fixed boundary	[CVE-2026-67222]
Debiansid	rabbitmq-server	`4.3.6-1`	Fixed	[CVE-2026-67222]
Debianforky	rabbitmq-server	`4.3.0-2`	FixedDistribution-reported fixed boundary	[CVE-2026-67222]
Debianforky	rabbitmq-server	`4.3.6-1`	Fixed	[CVE-2026-67222]

Showing 4 fix observations. All 13 observations, including unknown and conflicting reports, are available below.

Provider details and historical evidence

Distribution / release	Package	Version	Status	Source
BitnamiRelease not reported	rabbitmq	`3.13.15`	UnknownSource applicability is not established	[BIT-RABBITMQ-2026-67222]Oct 16, 2026, 9:45:22 AM UTC
BitnamiRelease not reported	rabbitmq	`4.0.20`	UnknownSource applicability is not established	[BIT-RABBITMQ-2026-67222]Oct 16, 2026, 9:45:22 AM UTC
BitnamiRelease not reported	rabbitmq	`4.1.11`	UnknownSource applicability is not established	[BIT-RABBITMQ-2026-67222]Oct 16, 2026, 9:45:22 AM UTC
BitnamiRelease not reported	rabbitmq	`4.2.6`	UnknownSource applicability is not established	[BIT-RABBITMQ-2026-67222]Oct 16, 2026, 9:45:22 AM UTC
Debianbookworm	rabbitmq-server	Not reported	AffectedDistribution reports no fix	[CVE-2026-67222]
Debianbookworm	rabbitmq-server	`3.10.8-1.1+deb12u1`	Affected	[CVE-2026-67222]
Debianbookworm-security	rabbitmq-server	`3.10.8-1.1+deb12u1`	Affected	[CVE-2026-67222]
Debianforky	rabbitmq-server	`4.3.0-2`	FixedDistribution-reported fixed boundary	[CVE-2026-67222]
Debianforky	rabbitmq-server	`4.3.6-1`	Fixed	[CVE-2026-67222]
Debiansid	rabbitmq-server	`4.3.0-2`	FixedDistribution-reported fixed boundary	[CVE-2026-67222]
Debiansid	rabbitmq-server	`4.3.6-1`	Fixed	[CVE-2026-67222]
Debiantrixie	rabbitmq-server	Not reported	AffectedDistribution reports no fix	[CVE-2026-67222]
Debiantrixie	rabbitmq-server	`4.0.5-6+deb13u2`	Affected	[CVE-2026-67222]

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",
      "provider_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-67222",
      "fixed_version": "4.2.6",
      "provider_source": "nvd",
      "provider_record_id": "NVD-CVE-2026-67222",
      "provider_updated_at": "2026-10-15T20:01:46.570"
    },
    {
      "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",
      "provider_url": "https://osv.dev/vulnerability/BIT-rabbitmq-2026-67222",
      "fixed_version": "3.13.15",
      "provider_source": "pypi",
      "provider_record_id": "BIT-RABBITMQ-2026-67222",
      "provider_updated_at": "2026-10-16T09:45:22.496291632Z",
      "applicability_unknown": true
    }
  ]
}

OpenFactory catalog packages

L’association des paquets est en cours.

[Debian 12 (Bookworm)]

[rabbitmq-server]Inconnu
Détails (4)
- 3.10.8-1.1+deb12u1 · all · bookworm
  Affectée
  nvd · rabbitmq-server · debian · bookworm
- 3.10.8-1.1+deb12u1 · all · bookworm
  Affectée
  nvd · rabbitmq-server · debian · bookworm
- 3.10.8-1.1+deb12u1 · all · bookworm-security
  Affectée
  nvd · rabbitmq-server · debian · bookworm
- 3.10.8-1.1+deb12u1 · all · bookworm-security
  Affectée
  nvd · rabbitmq-server · debian · bookworm

Observé: Oct 23, 2026, 9:44:23 PM UTC

Références

[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]