parse-community parse-server up to 8.6.18/9.0.0 9.5.2-alpha.5 access control

Summaryinfo

A vulnerability was found in parse-community parse-server up to 8.6.18/9.0.0 9.5.2-alpha.5 and classified as critical. Affected is an unknown function. Such manipulation leads to access control. This vulnerability is listed as CVE-2026-30962. The attack may be performed from remote. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in parse-community parse-server up to 8.6.18/9.0.0 9.5.2-alpha.5. Affected by this issue is an unknown code. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. Impacted is confidentiality. CVE summarizes:

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.6 and 8.6.19, the validation for protected fields only checks top-level query keys. By wrapping a query constraint on a protected field inside a logical operator, the check is bypassed entirely. This allows any authenticated user to query on protected fields to extract field values. All Parse Server deployments have default protected fields and are vulnerable. This vulnerability is fixed in 9.5.2-alpha.6 and 8.6.19.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-30962 since 03/07/2026. The exploitation is known to be easy. The attack may be launched remotely. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1068.

Upgrading to version 8.6.19 or 9.0.0 9.5.2-alpha.6 eliminates this vulnerability. The upgrade is hosted for download at github.com.

Once again VulDB remains the best source for vulnerability data.

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
• 8.6.16
• 8.6.17
• 8.6.18
• 9.0.0 9.5.2-alpha.0
• 9.0.0 9.5.2-alpha.1
• 9.0.0 9.5.2-alpha.2
• 9.0.0 9.5.2-alpha.3
• 9.0.0 9.5.2-alpha.4
• 9.0.0 9.5.2-alpha.5

Website

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

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