---
id: CVE-2026-82061
title: >-
  A use-after-free security issue exists in the server's query execution memory
  tracking subsystem
summary: >-
  A use-after-free security issue exists in the server's query execution memory
  tracking subsystem. An authenticated user with read privileges can trigger a
  write to freed heap memory through a sequence of standard database commands,
  leadi…
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-416
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: '2026-09-16T20:36:31.050'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-82061'
references:
  - url: 'https://jira.mongodb.org/browse/SERVER-130907'
    label: cna@mongodb.com
tags:
  - nvd
  - cve.org
epss: 0.00525
epssPercentile: 0.42093
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-08T17:57:21.654411Z'
ingestedAt: '2026-09-08T16:34:19.257Z'
---

## Overview

A use-after-free security issue exists in the server's query execution memory tracking subsystem. An authenticated user with read privileges can trigger a write to freed heap memory through a sequence of standard database commands, leading to server process crash or potential memory corruption. No user interaction is required.

## Affected

- `mongodb >= 8.3.0, < 8.3.9`

## Remediation

Upgrade past the affected range:

- `mongodb 8.3.9`