{
  "cveId": "CVE-2026-67223",
  "url": "https://patchblox.com/security/cve/CVE-2026-67223",
  "summary": "CVE-2026-67223 is fixed in rabbitmq-server on 1 platform by DEBIAN-CVE-2026-67223 (version 4.3.6-1), released October 10, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "RabbitMQ: LDAP DN injection via unescaped substitution",
  "description": "RabbitMQ is a messaging and streaming broker. The advisory establishes affected 3.13, 4.0, 4.1, 4.2, and 4.3 maintenance lines but contains conflicting first-fixed versions for the 3.13, 4.0, and 4.1 lines. fill/2 substitutes ${username} into user_dn_pattern without RFC 4514 DN escaping, allowing a crafted username to alter the LDAP bind DN and potentially select a different directory entry. Exploitation requires rabbitmq_auth_backend_ldap with a user_dn_pattern containing ${username}, a directory layout in which the injected suffix resolves usefully, and a password valid for the resulting DN. The advisory body identifies 3.13.15, 4.0.20, 4.1.11, 4.2.9, and 4.3.3 as fixed, while structured metadata identifies 3.13.18, 4.0.23, 4.1.14, 4.2.9, and 4.3.3. No fixed-version assertion is certifiable until a curator resolves this conflict.",
  "published": "2026-09-25T17:17:10Z",
  "severity": "Moderate",
  "cvss": 7.1,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N",
  "cwe": "Improper Neutralization of Special Elements used in an LDAP Query (\u0027LDAP Injection\u0027)",
  "epss": 0.00357,
  "epssPercentile": 0.29636,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-67223",
  "fixes": [
    {
      "platform": "linux",
      "product": "rabbitmq-server",
      "release": "Debian 14",
      "fixedVersion": "4.3.6-1",
      "fix": "DEBIAN-CVE-2026-67223",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-67223",
      "released": "2026-10-10T22:48:57Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}