All vulnerabilities
CVE-2026-107324

Application denial of service via integer overflow in BSON value-length validation in MongoDB Go Driver

MongoDB Go DriverDatabases
Open in ThreatlineRecord JSON
CVSS
8.2High
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.23%Chance of exploitation activity in the next 30 days, higher than 13% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in1.2.0Also 2.9.0CVE List
Published8 Oct 2026Updated 8 Oct 2026CVE List

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

An integer overflow in BSON value-length handling in the MongoDB Go Driver can cause a runtime panic when an application validates or accesses a malformed BSON document. An unauthenticated actor who can supply BSON bytes to an affected application may terminate an unprotected application process, causing a denial of service. The driver's server-monitoring path contains panic recovery and is limited to server-selection failure.

Text from CVE List

Affected versions 2

  • Go Driveraffected: 1.0.0 before 1.2.0CVE List
  • Go Driveraffected: 2.0.0 before 2.9.0CVE List

References 1