{
  "cveId": "CVE-2026-54463",
  "url": "https://patchblox.com/security/cve/CVE-2026-54463",
  "summary": "CVE-2026-54463 is fixed in ruby-websocket-driver on 1 platform by DEBIAN-CVE-2026-54463 (version 0.8.1-1), released July 19, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "ruby-websocket-driver: websocket-driver is a WebSocket protocol handler with pluggable I/O",
  "description": "websocket-driver is a WebSocket protocol handler with pluggable I/O. Prior to 0.8.1, draft versions of the WebSocket protocol in websocket-driver include a length header that allows an arbitrarily large integer to be encoded as bytes with the high bit set, and a server or client can send an indefinite sequence of 0x80 or higher bytes that the peer parses into an ever-growing Ruby integer. This can make a WebSocket connection consume an unbounded amount of memory and lead to the host process running out of memory. This issue is fixed in version 0.8.1.",
  "published": "2026-07-17T20:17:26Z",
  "severity": "high",
  "cvss": 7.5,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00488,
  "epssPercentile": 0.42282,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "ruby-websocket-driver",
      "release": "Debian 14",
      "fixedVersion": "0.8.1-1",
      "fix": "DEBIAN-CVE-2026-54463",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-54463",
      "released": "2026-07-19T12:50:38Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T07:25:28Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}