---
id: CVE-2026-18700
title: >-
  An issue in MongoDB Server's geospatial validation could allow an
  authenticated user with write privileges to cause an internal reference to be
  used after the underlying memory has been freed, through concurrent operations
  against a coll…
summary: >-
  An issue in MongoDB Server's geospatial validation could allow an
  authenticated user with write privileges to cause an internal reference to be
  used after the underlying memory has been freed, through concurrent operations
  against a coll…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-416
vendor: mongodb
product: mongodb
affected:
  - 'mongodb >= 7.0.0, < 7.0.40'
  - 'mongodb >= 8.0.0, < 8.0.29'
  - 'mongodb >= 8.2.0, <= 8.2.12'
  - 'mongodb >= 8.3.0, < 8.3.8'
  - mongodb = 9.0.0
  - mongodb = 9.1.0
patched:
  - mongodb 8.3.8
published: '2026-08-11'
updated: '2026-09-16'
sourceUpdated: '2026-09-16T15:18:14.393'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-18700'
references:
  - url: 'https://jira.mongodb.org/browse/SERVER-130117'
    label: cna@mongodb.com
tags:
  - nvd
epss: 0.00402
epssPercentile: 0.31741
ingestedAt: '2026-08-29T19:41:15.880Z'
---

## Overview

An issue in MongoDB Server's geospatial validation could allow an authenticated user with write privileges to cause an internal reference to be used after the underlying memory has been freed, through concurrent operations against a collection using a certain type of validator. This could result in a server crash, leading to a denial of service.

## Affected

- `mongodb >= 7.0.0, < 7.0.40`
- `mongodb >= 8.0.0, < 8.0.29`
- `mongodb >= 8.2.0, <= 8.2.12`
- `mongodb >= 8.3.0, < 8.3.8`
- `mongodb = 9.0.0`
- `mongodb = 9.1.0`

## Remediation

Upgrade past the affected range:

- `mongodb 8.3.8`