parse-community parse-server up to 8.6.15/9.0.0 9.5.2-alpha.2 authorization

Summaryinfo

A vulnerability, which was classified as problematic, has been found in parse-community parse-server up to 8.6.15/9.0.0 9.5.2-alpha.2. Affected is an unknown function. This manipulation causes authorization. The identification of this vulnerability is CVE-2026-30947. It is possible to initiate the attack remotely. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability has been found in parse-community parse-server up to 8.6.15/9.0.0 9.5.2-alpha.2 and classified as problematic. Affected by this vulnerability is an unknown functionality. The manipulation with an unknown input leads to a authorization vulnerability. The CWE definition for the vulnerability is CWE-863. The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions. As an impact it is known to affect confidentiality. The summary by CVE is:

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.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-30947 since 03/07/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 8.6.16 or 9.0.0 9.5.2-alpha.3 eliminates this vulnerability. The upgrade is hosted for download at github.com.

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Productinfo

Vendor

• parse-community

Name

• parse-server

Version

• 8.6.0
• 8.6.1
• 8.6.2
• 8.6.3
• 8.6.4
• 8.6.5
• 8.6.6
• 8.6.7
• 8.6.8
• 8.6.9
• 8.6.10
• 8.6.11
• 8.6.12
• 8.6.13
• 8.6.14
• 8.6.15
• 9.0.0 9.5.2-alpha.0
• 9.0.0 9.5.2-alpha.1
• 9.0.0 9.5.2-alpha.2

Website

• Product: https://github.com/parse-community/parse-server/

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