{
  "cveId": "CVE-2026-8336",
  "url": "https://patchblox.com/security/cve/CVE-2026-8336",
  "summary": "CVE-2026-8336 is fixed in MongoDB on 1 platform by MongoDB 8.3.2 (version 8.3.2), released May 12, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "Post-authentication use-after-free error in $_internalJsEmit and mapreduce commands",
  "description": "After invoking $_internalJsEmit, which is not intended to be directly accessible, or mapreduce command\u2019s map function in a certain way, an authenticated user can subsequently crash mongod when the server-side JavaScript engine (through $where, $function, mapreduce reduce stage, etc.) is used also in a specific way, resulting in a post-authentication denial-of-service.\n\nThis issue impacts MongoDB Server v8.2 versions prior to 8.2.9 and v8.3 versions prior to 8.3.2.",
  "published": "2026-05-13T04:17:42Z",
  "severity": "",
  "cvss": 7.7,
  "cwe": "CWE-416: Use After Free",
  "epss": 0.00255,
  "epssPercentile": 0.17223,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://nvd.nist.gov/vuln/detail/CVE-2026-8336",
  "fixes": [
    {
      "platform": "windows-app",
      "product": "MongoDB",
      "fixedVersion": "8.3.2",
      "fix": "MongoDB 8.3.2",
      "url": "https://patchblox.com/security/fix/windows-app/mongodb.server-8.3.2",
      "released": "2026-05-12T00:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T06:59:42Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}