CVE-2026-30835

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.7 and 9.5.0-alpha.6, malformed $regex query parameter (e.g. [abc) causes the database to return a structured error object that is passed unsanitized through the API response. This leaks database internals such as error messages, error codes, code names, cluster timestamps, and topology details. The vulnerability is exploitable by any client that can send query requests, depending on the deployment's permission configuration. This issue has been patched in versions 8.6.7 and 9.5.0-alpha.6.

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/parse-community/parse-server/releases/tag/8.6.7	Product Release Notes
https://github.com/parse-community/parse-server/releases/tag/9.5.0-alpha.6	Product Release Notes
https://github.com/parse-community/parse-server/security/advisories/GHSA-9cp7-3q5w-j92g	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:9.5.0:alpha1::::node.js::*
	cpe:2.3:a:parseplatform:parse-server:9.5.0:alpha2::::node.js::*
	cpe:2.3:a:parseplatform:parse-server:9.5.0:alpha3::::node.js::*
	cpe:2.3:a:parseplatform:parse-server:9.5.0:alpha4::::node.js::*
	cpe:2.3:a:parseplatform:parse-server:9.5.0:alpha5::::node.js::*

History

No history.

Information

Published : 2026-03-06 21:16

Updated : 2026-03-11 13:08

NVD link : CVE-2026-30835

Mitre link : CVE-2026-30835

CVE.ORG link : CVE-2026-30835

JSON object : View

Products Affected

parseplatform

parse-server

CWE

CWE-209

Generation of Error Message Containing Sensitive Information

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Prior to versions 8.6.7 and 9.5.0-alpha.6, malformed $regex query parameter (e.g. [abc) causes the database to return a structured error object that is passed unsanitized through the API response. This leaks database internals such as error messages, error codes, code names, cluster timestamps, and topology details. The vulnerability is exploitable by any client that can send query requests, depending on the deployment's permission configuration. This issue has been patched in versions 8.6.7 and 9.5.0-alpha.6."}, {"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 las versiones 8.6.7 y 9.5.0-alpha.6, un par\u00e1metro de consulta $regex malformado (por ejemplo, [abc) hace que la base de datos devuelva un objeto de error estructurado que se pasa sin sanitizar a trav\u00e9s de la respuesta de la API. 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