parse-community parse-server up to 8.6.30/9.0.0 9.6.0-alpha.4 Parse Server REST API sql injection

Summaryinfo

A vulnerability labeled as critical has been found in parse-community parse-server up to 8.6.30/9.0.0 9.6.0-alpha.4. This issue affects some unknown processing of the component Parse Server REST API. Such manipulation leads to sql injection. This vulnerability is documented as CVE-2026-31871. The attack can be executed remotely. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in parse-community parse-server up to 8.6.30/9.0.0 9.6.0-alpha.4. It has been rated as critical. Affected by this issue is an unknown part of the component Parse Server REST API. The manipulation with an unknown input leads to a sql injection vulnerability. Using CWE to declare the problem leads to CWE-89. The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.6.0-alpha.5 and 8.6.31, a SQL injection vulnerability exists in the PostgreSQL storage adapter when processing Increment operations on nested object fields using dot notation (e.g., stats.counter). The sub-key name is interpolated directly into SQL string literals without escaping. An attacker who can send write requests to the Parse Server REST API can inject arbitrary SQL via a crafted sub-key name containing single quotes, potentially executing commands or reading data from the database, bypassing CLPs and ACLs. Only Postgres deployments are affected. This vulnerability is fixed in 9.6.0-alpha.5 and 8.6.31.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-31871 since 03/09/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1505 by the MITRE ATT&CK project.

Upgrading to version 8.6.31 or 9.0.0 9.6.0-alpha.5 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
• 8.6.16
• 8.6.17
• 8.6.18
• 8.6.19
• 8.6.20
• 8.6.21
• 8.6.22
• 8.6.23
• 8.6.24
• 8.6.25
• 8.6.26
• 8.6.27
• 8.6.28
• 8.6.29
• 8.6.30
• 9.0.0 9.6.0-alpha.0
• 9.0.0 9.6.0-alpha.1
• 9.0.0 9.6.0-alpha.2
• 9.0.0 9.6.0-alpha.3
• 9.0.0 9.6.0-alpha.4

Website

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

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