{
  "cveId": "CVE-2026-57220",
  "url": "https://patchblox.com/security/cve/CVE-2026-57220",
  "summary": "CVE-2026-57220 is fixed in rabbitmq-server on 1 platform, first by OPENSUSE-SU-2026:21903-1, released September 22, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "RabbitMQ: Stream listener does not enforce configured frame-size limit during authentication, permitting unauth\u0027d mem-exhaust DoS",
  "description": "This update for rabbitmq-server fixes the following issues:\n\n- CVE-2026-44839: XSS in management UI due to unsanitized vhost names (bsc#1266465).\n- CVE-2026-57212: The rabbitmq_management HTTP API accepts oversized valid JSON bodies on with_decode and direct_request\n  paths (bsc#1271318).\n- CVE-2026-57213: stored XSS in RabbitMQ federation management plugin via unsanitized consumer_tag rendering\n  (bsc#1271336).\n- CVE-2026-57214: stored XSS in RabbitMQ management UI (bsc#1271337).\n- CVE-2026-57215: direct-reply-to binding persistence can lead to unauthorized reply-channel injection and persistent\n  phantom (bsc#1271338).\n- CVE-2026-57216: stream Protocol loopback enforcement can lead to remote guest sessions due to listener-address\n  loopback checks (bsc#1271339).\n- CVE-2026-57217: topic authorization can lead to cross-tenant routing-key bypass (bsc#1271340).\n- CVE-2026-57218: consumer persistence can lead to post-revocation message disclosure in OAuth2 (bsc#1271343).\n- CVE-2026-57219: Unauthenticated disclosure of OAuth client credentials via an HTTP API endpoint with certain less\n  common OAuth 2 configurations (bsc#1271344).\n- CVE-2026-57220: stream listener does not enforce configured frame-size limit during authentication, permitting\n  unauth\u0027d mem-exhaust DoS (bsc#1271345).\n- CVE-2026-57221: passive queue/exchange declaration bypasses authorization checks, leaking queue metadata to\n  unprivileged users (bsc#1271346).",
  "published": "2026-07-15T01:02:20Z",
  "severity": "Important",
  "cvss": 7.5,
  "cwe": "Allocation of Resources Without Limits or Throttling",
  "epss": 0.00547,
  "epssPercentile": 0.46139,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-57220",
  "fixes": [
    {
      "platform": "linux",
      "product": "rabbitmq-server",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "4.1.5-160000.2.1",
      "fix": "OPENSUSE-SU-2026:21903-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21903-1",
      "released": "2026-09-22T02:16:57Z"
    },
    {
      "platform": "linux",
      "product": "rabbitmq-server",
      "release": "sles 16.0",
      "fixedVersion": "4.1.5-160000.2.1",
      "fix": "SUSE-SU-2026:23869-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-23869-1",
      "released": "2026-09-22T02:23:51Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-10T13:56:55Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}