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CVE-2026-31871— Parse Server has a SQL Injection via dot-notation sub-key name in `Increment` operation on PostgreSQL

Quick assessment

Affected
parse-community parse-server
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Parse Server是Parse Platform开源的一个开源后端，可以部署到任何可以运行 Node.js 的基础设施。 Parse Server 9.6.0-alpha.5之前版本和8.6.31之前版本存在SQL注入漏洞，该漏洞源于PostgreSQL存储适配器对子键名处理不当，可能导致SQL注入攻击。

AI Predicted 9.1 Difficulty: Easy EPSS 0.54% · P44
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I. Basic Information for CVE-2026-31871

Vulnerability Information
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Vulnerability Title
Parse Server has a SQL Injection via dot-notation sub-key name in `Increment` operation on PostgreSQL
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
SQL命令中使用的特殊元素转义处理不恰当(SQL注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Parse Server SQL注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Parse Server是Parse Platform开源的一个开源后端，可以部署到任何可以运行 Node.js 的基础设施。 Parse Server 9.6.0-alpha.5之前版本和8.6.31之前版本存在SQL注入漏洞，该漏洞源于PostgreSQL存储适配器对子键名处理不当，可能导致SQL注入攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
parse-community parse-server >= 9.0.0 < 9.6.0-alpha.5 -

II. Public POCs for CVE-2026-31871

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III. Intelligence Information for CVE-2026-31871

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Patches & Fixes for CVE-2026-31871 (1)

Vendor Advisories for CVE-2026-31871 (1)

Other References for CVE-2026-31871 (1)

Same Patch Batch · parse-community · 2026-03-11 · 9 CVEs total

CVE-2026-31840 Parse Server has a SQL injection via dot-notation field name in PostgreSQL
CVE-2026-31856 Parse Server has a SQL injection via `Increment` operation on nested object field in Postg
CVE-2026-31872 Parse Server has a protected fields bypass via dot-notation in query and sort
CVE-2026-31875 Parse Server MFA recovery codes not consumed after use
CVE-2026-31868 Parse Server has Stored XSS via file upload of HTML-renderable file types
CVE-2026-32234 Parse Server has a SQL injection via query field name when using PostgreSQL
CVE-2026-32098 Parse Server has a protected fields bypass via LiveQuery subscription WHERE clause
CVE-2026-31901 Parse Server has user enumeration via email verification endpoint

IV. Related Vulnerabilities

Same product: parse-server
Same vendor: parse-community
Same weakness: CWE-89

V. Comments for CVE-2026-31871

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