{
  "cveId": "CVE-2026-111181",
  "url": "https://patchblox.com/security/cve/CVE-2026-111181",
  "summary": "CVE-2026-111181 is fixed in node-body-parser on 1 platform by DEBIAN-CVE-2026-111181 (version 2.4.0\u002B~1.19.6-1), released October 27, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "body-parser vulnerable to Denial of Service via trailing bytes after a compressed request body",
  "description": "body-parser is body parsing middleware for Node.js and Express. In versions before 1.20.9 and in versions from 2.0.0 before 2.4.0, a single request can crash any application using body-parser with default options. When a request carries a Content-Encoding such as gzip, body-parser pipes it into a decompression stream and, after reading the body, leaves that stream with no error listener. A payload of one valid compressed frame followed by trailing bytes decodes and the application responds normally, but the trailing bytes then reach the already-finished decoder, which emits an error that is re-thrown as an uncaught exception and terminates the process. No matching route is required because body parsing runs before routing, so any endpoint that parses a body is affected. The issue is fixed in body-parser 2.4.0 and 1.20.9, and users should upgrade to one of those versions or later. As a workaround, disable request-body inflation (set the body-parser inflate option to false) so encoded requests are rejected before any decompression stream is created.",
  "published": "2026-10-22T15:17:04Z",
  "severity": "Important",
  "cvss": 7.5,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
  "cwe": "Uncaught Exception",
  "epss": 0.00388,
  "epssPercentile": 0.33158,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-111181",
  "fixes": [
    {
      "platform": "linux",
      "product": "node-body-parser",
      "release": "Debian 14",
      "fixedVersion": "2.4.0\u002B~1.19.6-1",
      "fix": "DEBIAN-CVE-2026-111181",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-111181",
      "released": "2026-10-27T21:14:52Z"
    }
  ],
  "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"
  }
}