{
  "cveId": "CVE-2026-19204",
  "url": "https://patchblox.com/security/cve/CVE-2026-19204",
  "summary": "CVE-2026-19204 is fixed in jetty12 on 1 platform by DEBIAN-CVE-2026-19204 (version 12.0.39-1), released September 7, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "jetty12: A client may send a WebSocket frame with an unknown opcode and a very large declared payload length, causing Jetty to...",
  "description": "A client may send a WebSocket frame with an unknown opcode and a very large declared payload length, causing Jetty to attempt a large memory allocation and potentially exhaust the JVM heap.     This occurs when auto-fragmentation is enabled, as unknown opcodes bypass the normal maximum frame size handling and payload allocation occurs before the opcode is validated.",
  "published": "2026-09-07T11:17:20Z",
  "severity": "",
  "epss": 0.00454,
  "epssPercentile": 0.39668,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "jetty12",
      "release": "Debian 14",
      "fixedVersion": "12.0.39-1",
      "fix": "DEBIAN-CVE-2026-19204",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-19204",
      "released": "2026-09-07T11:17:20Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T13:31:49Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}