CVE-2026-13055

The `$_internalIndexKey` aggregation expression can be used by any authenticated user to crash a MongoDB server (mongod). The expression fails to handle compound wildcard index specifications, triggering an internal consistency check that aborts the server process. The user must be able to run an aggregation pipeline.

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-123081	Vendor Advisory Issue Tracking

Configurations

Configuration 1 (hide)

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

History

24 Oct 2026, 13:10

Type	Values Removed	Values Added
Summary		(es) La expresión de agregación ’$_internalIndexKey’ puede ser utilizada por cualquier usuario autenticado para colapsar un servidor MongoDB (mongod). La expresión no logra manejar especificaciones de índice comodín compuesto, lo que desencadena una comprobación de consistencia interna que aborta el proceso del servidor. El usuario debe ser capaz de ejecutar una pipeline de agregación.

Information

Published : 2026-07-22 20:16

Updated : 2026-10-24 13:10

NVD link : CVE-2026-13055

Mitre link : CVE-2026-13055

CVE.ORG link : CVE-2026-13055

JSON object : View

Products Affected

mongodb

mongodb

CWE

CWE-617

Reachable Assertion

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