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CVE-2026-8201 Use-After-Free in MongoDB FLE Query Analysis When Processing Positional Projections on Encrypted Fields

🗓️ 13 May 2026 00:12:35Reported by mongodbType 
cvelist
 cvelist
🔗 www.cve.org👁 31 Views

Use-after-free in MongoDB Field-Level Encryption query analysis affects mongocryptd and crypt_shared in older server versions.

Related
Affected
Refs
[
  {
    "vendor": "MongoDB, Inc.",
    "product": "MongoDB Server",
    "versions": [
      {
        "status": "affected",
        "version": "7.0",
        "lessThan": "7.0.34",
        "versionType": "custom"
      },
      {
        "status": "affected",
        "version": "8.0",
        "lessThan": "8.0.23",
        "versionType": "custom"
      },
      {
        "status": "affected",
        "version": "8.2",
        "lessThan": "8.2.9",
        "versionType": "custom"
      },
      {
        "status": "affected",
        "version": "8.3",
        "lessThan": "8.3.2",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

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