{
  "cveId": "CVE-2026-18688",
  "url": "https://patchblox.com/security/cve/CVE-2026-18688",
  "summary": "CVE-2026-18688 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: High.",
  "title": "Out-of-Bounds Read in MongoDB Aggregation Framework Leads to Denial of Service and Potential Memory Disclosure",
  "description": "An issue in MongoDB Server\u0027s aggregation framework could allow an authenticated user to trigger an out-of-bounds memory read by providing a specially formed numeric parameter in a certain aggregation pipeline stage. This could result in a server crash (denial of service) and may potentially expose a limited amount of memory contents.",
  "published": "2026-08-11T19:17:22Z",
  "severity": "",
  "cvss": 7.1,
  "cwe": "CWE-125: Out-of-bounds Read",
  "epss": 0.00399,
  "epssPercentile": 0.34446,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://nvd.nist.gov/vuln/detail/CVE-2026-18688",
  "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": "2026-11-08T19:12:23Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}