CVE-2026-18706

An issue in MongoDB Server's $graphLookup aggregation stage could allow an authenticated user able to issue aggregation and memory-management commands to cause an internal reference to be used after the underlying memory has been freed. This could result in a server crash or, potentially, execution of unintended code.

CVSS v3 6.6 MEDIUM

6.6^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 0.7 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://jira.mongodb.org/browse/SERVER-128551	Vendor Advisory Issue Tracking

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:mongodb:mongodb::::::::
	cpe:2.3:a:mongodb:mongodb:9.0.0:alpha0:::-:-::
	cpe:2.3:a:mongodb:mongodb:9.0.0:alpha1:::-:-::

History

16 Sep 2026, 15:19

Type	Values Removed	Values Added
CPE		cpe:2.3:a:mongodb:mongodb:9.0.0:alpha1:::-:-:: cpe:2.3:a:mongodb:mongodb:::::::: cpe:2.3:a:mongodb:mongodb:9.0.0:alpha0:::-:-::
References	~~() https://jira.mongodb.org/browse/SERVER-128551 -~~	() https://jira.mongodb.org/browse/SERVER-128551 - Vendor Advisory, Issue Tracking
First Time		Mongodb Mongodb mongodb

Information

Published : 2026-08-11 19:17

Updated : 2026-09-16 15:19

NVD link : CVE-2026-18706

Mitre link : CVE-2026-18706

CVE.ORG link : CVE-2026-18706

JSON object : View

Products Affected

mongodb

mongodb

CWE

CWE-416

Use After Free

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