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Heap over-read or silent misparse via 32-bit truncation of JSON length in BSON JSON parser

🗓️ 03 Sep 2026 14:56:14Reported by MongoDBType 
mongodb
 mongodb
🔗 www.mongodb.com👁 3 Views

Heap over-read or misparse in MongoDB C++ Driver BSON JSON parser via 32-bit truncation.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-84970
3 Sep 202615:30
circl
cve
CVE
CVE-2026-84970
3 Sep 202614:56
cve
cvelist
Cvelist
CVE-2026-84970 Heap over-read or silent misparse via 32-bit truncation of JSON length in BSON JSON parser
3 Sep 202614:56
cvelist
debiancve
Debian CVE
CVE-2026-84970
3 Sep 202614:56
debiancve
euvd
EUVD
EUVD-2026-70505
3 Sep 202614:56
euvd
nvd
NVD
CVE-2026-84970
3 Sep 202615:17
nvd
osv
OSV
DEBIAN-CVE-2026-84970
3 Sep 202615:17
osv
ptsecurity
Positive Technologies
PT-2026-85073
3 Sep 202600:00
ptsecurity
ubuntucve
UbuntuCve
CVE-2026-84970
4 Sep 202600:00
ubuntucve
vulnrichment
Vulnrichment
CVE-2026-84970 Heap over-read or silent misparse via 32-bit truncation of JSON length in BSON JSON parser
3 Sep 202614:56
vulnrichment
Vulners
Node
mongodbc++_driverRange3.2.04.5.2

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03 Sep 2026 15:17Current
CVSS 45.9
CVSS 3.16.2
EPSS0.00099
SSVC
3