CVE-2026-31856 Details
Description
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. 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 amount value is interpolated directly into the SQL query without parameterization or type validation. An attacker who can send write requests to the Parse Server REST API can inject arbitrary SQL subqueries to read any data from the database, bypassing CLPs and ACLs. MongoDB deployments are not affected. This vulnerability is fixed in 9.6.0-alpha.3 and 8.6.29.
A SQL injection vulnerability has been identified in the PostgreSQL storage adapter of Parse Server. This issue arises when processing 'Increment' operations on nested object fields using dot notation, such as 'stats.counter'. The vulnerability allows an attacker to inject arbitrary SQL subqueries into the database query. This is possible because the 'amount' value is directly interpolated into the SQL query without proper parameterization or type validation. As a result, an attacker who can send write requests to the Parse Server REST API could exploit this vulnerability to read any data from the database, bypassing Class Level Permissions (CLPs) and Access Control Lists (ACLs). It is important to note that this vulnerability does not affect MongoDB deployments.
Users can upgrade to Parse Server versions 9.6.0-alpha.3 or 8.6.29 to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Mar 12, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/parse-community/parse-server/releases/tag/8.6.29 | [email protected] | ProductRelease Notes |
| https://github.com/parse-community/parse-server/releases/tag/9.6.0-alpha.3 | [email protected] | ProductRelease Notes |
| https://github.com/parse-community/parse-server/security/advisories/GHSA-q3vj-96h2-gwvg | [email protected] | PatchVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-89 | Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| parseplatform parse-server | < 8.6.29 >= 9.0.0, < 9.6.0 9.6.0 alpha1 9.6.0 alpha2 |
CPE
Remediation
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Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Mar 13, 2026 | Initial Analysis | [email protected] |
| Mar 11, 2026 | New CVE Received | [email protected] |