---
id: CVE-2026-82071
title: >-
  Insufficient validation of storage engine configuration options in MongoDB
  Server allows an authenticated user with write privileges to supply crafted
  parameters during collection creation that override internal storage metadata
summary: >-
  Insufficient validation of storage engine configuration options in MongoDB
  Server allows an authenticated user with write privileges to supply crafted
  parameters during collection creation that override internal storage metadata.
  This re…
severity: high
cvss: 8.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H'
cwe:
  - CWE-787
vendor: mongodb
product: mongodb
affected:
  - 'mongodb >= 8.3.0, < 8.3.9'
patched:
  - mongodb 8.3.9
published: '2026-09-08'
updated: '2026-09-16'
sourceUpdated: '2026-09-16T20:39:21.083'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-82071'
references:
  - url: 'https://jira.mongodb.org/browse/SERVER-131860'
    label: cna@mongodb.com
tags:
  - nvd
  - cve.org
epss: 0.003
epssPercentile: 0.22915
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-08T18:11:02.871509Z'
ingestedAt: '2026-09-08T16:34:19.257Z'
---

## Overview

Insufficient validation of storage engine configuration options in MongoDB Server allows an authenticated user with write privileges to supply crafted parameters during collection creation that override internal storage metadata. This results in an out-of-bounds memory write in the server process, causing a denial of service via server crash, with potential for further impact including arbitrary code execution.

## Affected

- `mongodb >= 8.3.0, < 8.3.9`

## Remediation

Upgrade past the affected range:

- `mongodb 8.3.9`