{
  "fix": "MongoDB 8.2.6",
  "url": "https://patchblox.com/security/fix/windows-app/mongodb.server-8.2.6",
  "summary": "MongoDB 8.2.6, released February 25, 2026, fixes 4 CVEs in MongoDB. None of them is reported as exploited. Patch Radar priority: High. The latest MongoDB is 9.0.4, which also fixes every one of these CVEs.",
  "platform": "windows-app",
  "type": "app-version",
  "title": "MongoDB 8.2.6",
  "released": "2026-02-25T00:00:00Z",
  "priority": "High",
  "priorityTier": 3,
  "priorityReason": "Closes CVE-2026-4148, high severity",
  "supported": true,
  "cveCount": 4,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.00363,
  "maxCvss": 8.7,
  "appliesTo": [
    {
      "product": "MongoDB",
      "productUrl": "https://patchblox.com/security/product/windows-app/mongodb",
      "fixedVersion": "8.2.6",
      "latestVersion": "9.0.4",
      "supported": true
    }
  ],
  "supersededBy": {
    "product": "MongoDB",
    "latestVersion": "9.0.4",
    "productUrl": "https://patchblox.com/security/product/windows-app/mongodb"
  },
  "cves": [
    {
      "cveId": "CVE-2026-4148",
      "url": "https://patchblox.com/security/cve/CVE-2026-4148",
      "title": "ExpressionContext use-after-free in classic engine $lookup and $graphLookup aggregation operators",
      "priority": "High",
      "cvss": 8.7,
      "epss": 0.00344,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-8843",
      "url": "https://patchblox.com/security/cve/CVE-2026-8843",
      "title": "Calling createIndex with certain index types can crash mongod",
      "priority": "High",
      "cvss": 7.1,
      "epss": 0.0024,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-4147",
      "url": "https://patchblox.com/security/cve/CVE-2026-4147",
      "title": "Stack memory disclosure in filemd5 command",
      "priority": "High",
      "cvss": 7.1,
      "epss": 0.00228,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-4358",
      "url": "https://patchblox.com/security/cve/CVE-2026-4358",
      "title": "Memory safety issues in slot-based execution hash table spill",
      "priority": "Routine",
      "cvss": 6.1,
      "epss": 0.00363,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "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"
  }
}