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CVE-2026-1847 MongoDB Server may crash when inserting large documents

🗓️ 10 Feb 2026 18:16:24Reported by mongodbType 
cvelist
 cvelist
🔗 www.cve.org👁 23 Views

MongoDB server crashes when inserting large documents; replica secondaries fail oplog fetch.

Related
Affected
Refs
[
  {
    "defaultStatus": "unaffected",
    "product": "MongoDB Server",
    "vendor": "MongoDB Inc",
    "versions": [
      {
        "lessThan": "8.0.18",
        "status": "affected",
        "version": "8.0",
        "versionType": "semver"
      },
      {
        "lessThan": "7.0.29",
        "status": "affected",
        "version": "7.0",
        "versionType": "semver"
      }
    ]
  }
]

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10 Feb 2026 18:16Current
CVSS 3.16.5
CVSS 47.1
EPSS0.00077
23