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CVE-2026-114651 Cross-document data leak via malformed BSON array parsing in reused thread buffer

🗓️ 22 Oct 2026 19:13:56Reported by mongodbType 
cvelist
 cvelist
🔗 www.cve.org👁 9 Views

Unauthenticated data leak in MongoDB C# Driver BSON deserialization via reused thread buffer.

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Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-114651
22 Oct 202619:13
–cve
euvd
EUVD
EUVD-2026-108322
22 Oct 202619:13
–euvd
nvd
NVD
CVE-2026-114651
22 Oct 202619:17
–nvd
[
  {
    "vendor": "MongoDB",
    "product": "C# Driver",
    "versions": [
      {
        "status": "affected",
        "version": "2.26.0",
        "lessThan": "3.13.0",
        "versionType": "semver"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

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