{
  "cveId": "CVE-2026-18698",
  "url": "https://patchblox.com/security/cve/CVE-2026-18698",
  "summary": "CVE-2026-18698 is fixed in MongoDB on 1 platform by MongoDB 8.3.11 (version 8.3.11), released September 9, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "Improper Authorization in MongoDB Server Allows Unauthorized Actions on System Collections via the validate Command",
  "description": "An issue in MongoDB Server could allow an authenticated user with a limited database-scoped role to perform an action against protected system collections that should require more specific privileges. This could result in exposure of collection metadata and, on certain deployment configurations, unauthorized modification of system collection data.",
  "published": "2026-08-11T19:17:24Z",
  "severity": "",
  "cvss": 5.3,
  "cwe": "CWE-863: Incorrect Authorization",
  "epss": 0.00244,
  "epssPercentile": 0.15703,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://nvd.nist.gov/vuln/detail/CVE-2026-18698",
  "fixes": [
    {
      "platform": "windows-app",
      "product": "MongoDB",
      "fixedVersion": "8.3.11",
      "fix": "MongoDB 8.3.11",
      "url": "https://patchblox.com/security/fix/windows-app/mongodb.server-8.3.11",
      "released": "2026-09-09T00:00:00Z"
    }
  ],
  "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"
  }
}