CVE-2026-8063

An authenticated user can crash mongod when running $rankFusion or $scoreFusion with an empty pipeline on a view. When resolving a view, the server inspects the aggregation pipeline to determine whether it begins with an Atlas Search stage. For $rankFusion and $scoreFusion, this inspection reads the first element on each stage’s input pipeline array without first verifying that the array is non-empty. Supplying an empty pipeline causes a null pointer dereference and crashes the server. This issue affects MongoDB Server 8.2 versions prior to 8.2.7.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://jira.mongodb.org/browse/SERVER-121851	Issue Tracking Patch

Configurations

Configuration 1 (hide)

cpe:2.3:a:mongodb:mongodb:*:*:*:*:-:*:*:*

History

11 May 2026, 15:26

Type	Values Removed	Values Added
CPE		cpe:2.3:a:mongodb:mongodb:::::-:::*
First Time		Mongodb mongodb Mongodb
References	~~() https://jira.mongodb.org/browse/SERVER-121851 -~~	() https://jira.mongodb.org/browse/SERVER-121851 - Issue Tracking, Patch

07 May 2026, 15:11

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-05-07 06:16

Updated : 2026-05-11 15:26

NVD link : CVE-2026-8063

Mitre link : CVE-2026-8063

CVE.ORG link : CVE-2026-8063

JSON object : View

Products Affected

mongodb

mongodb

CWE

CWE-476

NULL Pointer Dereference

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