Integer overflow in MongoDB Go Driver - CVE-2026-107324
Published: October 15, 2026
Vulnerability identifier: #VU155865
CSH Severity: Medium
CVSS v4: 8.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-107324
CWE-ID: CWE-190
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to integer overflow in BSON value-length validation in MongoDB Go Driver when calculating binary element sizes. A remote attacker can supply a crafted BSON document containing a binary element with a declared length of math.MaxInt32 to cause a denial of service.
Exploitation requires an application to call bson.Raw.Validate on untrusted bytes, including bytes received from an untrusted server.
Affected software
MongoDB Go Driver
How to mitigate CVE-2026-107324
Install security update from vendor's website.
MongoDB Go Driver - addressed in versions 1.2.0, 2.9.0