{
  "cveId": "CVE-2026-67242",
  "url": "https://patchblox.com/security/cve/CVE-2026-67242",
  "summary": "CVE-2026-67242 is fixed in rabbitmq-server on 1 platform by DEBIAN-CVE-2026-67242 (version 4.3.6-1), released October 10, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "rabbitmq-server: RabbitMQ is a messaging and streaming broker",
  "description": "RabbitMQ is a messaging and streaming broker. From 4.2.0 until 4.2.9 and 4.3.3, OAuth2 isinteger(Exp) guard skips token-expiry checks for float exp. validatetokenexpiry/1 (lines 208-214) and expirytimestamp/1 (138-144) both guard with \u0027when isinteger(Exp)\u0027 and fall through to ok/never for float values. josejwt:verify validates only the signature, not exp. With float exp, no expiry validation occurs anywhere in the If the IdP emits exp as a JSON float (RFC 7519 permits fractional NumericDate), both the login-time expiry check and the mid-connection disconnect timer are silently skipped , an already-expired token is accepted, and connections never time OAuth2 backend enabled IdP emits float exp (uncommon; mainstream IdPs emit integers) Attacker possesses a previously-valid signed. This issue is fixed in versions 4.2.9 and 4.3.3.",
  "published": "2026-09-25T17:17:12Z",
  "severity": "medium",
  "cvss": 5.4,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
  "epss": 0.00345,
  "epssPercentile": 0.28177,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "rabbitmq-server",
      "release": "Debian 14",
      "fixedVersion": "4.3.6-1",
      "fix": "DEBIAN-CVE-2026-67242",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-67242",
      "released": "2026-10-10T22:48:57Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T01:18:40Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}