---
id: CVE-2026-107324
title: >-
  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
summary: >-
  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 a…
severity: medium
cvss: 5.9
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-190
published: '2026-10-08'
updated: '2026-10-08'
sourceUpdated: '2026-10-08T20:49:23.240'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-107324'
references:
  - url: 'https://jira.mongodb.org/browse/GODRIVER-4102'
    label: cna@mongodb.com
tags:
  - nvd
ingestedAt: '2026-10-08T20:06:22.184Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.