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CVE-2026-84965 Heap write primitive via size round-up wrap during JSON parsing on 32-bit builds

🗓️ 03 Sep 2026 15:01:21Reported by mongodbType 
cvelist
 cvelist
🔗 www.cve.org👁 6 Views

Integer wrap in BSON library JSON parsing on 32-bit builds causes heap write denial of service.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-84965
3 Sep 202615:01
cve
euvd
EUVD
EUVD-2026-70513
3 Sep 202615:01
euvd
nvd
NVD
CVE-2026-84965
3 Sep 202616:18
nvd
ptsecurity
Positive Technologies
PT-2026-85069
3 Sep 202600:00
ptsecurity
[
  {
    "vendor": "MongoDB",
    "product": "C Driver",
    "versions": [
      {
        "status": "affected",
        "version": "1.10.0",
        "lessThan": "1.30.9",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "2.0.0",
        "lessThan": "2.5.2",
        "versionType": "semver"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

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