CVE-2026-30947

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.5.2-alpha.3 and 8.6.16, class-level permissions (CLP) are not enforced for LiveQuery subscriptions. An unauthenticated or unauthorized client can subscribe to any LiveQuery-enabled class and receive real-time events for all objects, regardless of CLP restrictions. All Parse Server deployments that use LiveQuery with class-level permissions are affected. Data intended to be restricted by CLP is leaked to unauthorized subscribers in real time. This vulnerability is fixed in 9.5.2-alpha.3 and 8.6.16.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/parse-community/parse-server/releases/tag/8.6.16	Product Release Notes
https://github.com/parse-community/parse-server/releases/tag/9.5.2-alpha.3	Product Release Notes
https://github.com/parse-community/parse-server/security/advisories/GHSA-7ch5-98q2-7289	Mitigation Patch Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:parseplatform:parse-server::::::node.js::*
	cpe:2.3:a:parseplatform:parse-server::::::node.js::*
	cpe:2.3:a:parseplatform:parse-server:9.5.2:alpha1::::node.js::*
	cpe:2.3:a:parseplatform:parse-server:9.5.2:alpha2::::node.js::*

History

No history.

Information

Published : 2026-03-10 21:16

Updated : 2026-03-11 17:15

NVD link : CVE-2026-30947

Mitre link : CVE-2026-30947

CVE.ORG link : CVE-2026-30947

JSON object : View

Products Affected

parseplatform

parse-server

CWE

CWE-863

Incorrect Authorization

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Prior to 9.5.2-alpha.3 and 8.6.16, class-level permissions (CLP) are not enforced for LiveQuery subscriptions. An unauthenticated or unauthorized client can subscribe to any LiveQuery-enabled class and receive real-time events for all objects, regardless of CLP restrictions. All Parse Server deployments that use LiveQuery with class-level permissions are affected. Data intended to be restricted by CLP is leaked to unauthorized subscribers in real time. This vulnerability is fixed in 9.5.2-alpha.3 and 8.6.16."}, {"lang": "es", "value": "Parse Server es un backend de c\u00f3digo abierto que puede ser desplegado en cualquier infraestructura que pueda ejecutar Node.js. Antes de 9.5.2-alpha.3 y 8.6.16, los permisos a nivel de clase (CLP) no se aplican para las suscripciones de LiveQuery. Un cliente no autenticado o no autorizado puede suscribirse a cualquier clase habilitada para LiveQuery y recibir eventos en tiempo real para todos los objetos, independientemente de las restricciones de CLP. Todas las implementaciones de Parse Server que utilizan LiveQuery con permisos a nivel de clase se ven afectadas. Los datos destinados a ser restringidos por CLP se filtran a suscriptores no autorizados en tiempo real. 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