What is the CVSS score of CVE-2026-31840?

CVE-2026-31840 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.0%.

Which versions of Node.js are affected by CVE-2026-31840?

Parse Server deployments running version 9.6.0 or earlier are vulnerable to SQL injection attacks that could allow unauthorized database access and data exfiltration.. A patch is available.

How to fix or mitigate CVE-2026-31840?

Within 24 hours: Identify and inventory all Parse Server instances and their versions in your environment; isolate affected systems from production if possible and implement network-based access controls. Within 7 days: Deploy Web Application Firewall (WAF) rules to detect and block SQL injection patterns; implement database activity monitoring and alerting; restrict database user permissions to least-privilege principles. Within 30 days: Upgrade to Parse Server version 9.6.1 or later once patches are released; conduct database audit for unauthorized access; review and strengthen input validation across all application endpoints.

Node.js CVE-2026-31840

CRITICAL

SQL Injection (CWE-89)

2026-03-11 security-advisories@github.com

GHSA-qpr4-jrj4-6f27

Node.js PostgreSQL SQLi Parse Server

9.8

CVSS 3.1 · GitHub Advisory

Severity by source

GitHub Advisory PRIMARY

9.8 CRITICAL

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Patch released

Mar 31, 2026 - 21:13 nvd

Patch available

Analysis Generated

Mar 12, 2026 - 22:06 vuln.today

CVE Published

Mar 11, 2026 - 17:16 nvd

CRITICAL 9.8

DescriptionGitHub Advisory

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.2 and 8.6.28, an attacker can use a dot-notation field name in combination with the sort query parameter to inject SQL into the PostgreSQL database through an improper escaping of sub-field values in dot-notation queries. The vulnerability may also affect queries that use dot-notation field names with the distinct and where query parameters. This vulnerability only affects deployments using a PostgreSQL database. This vulnerability is fixed in 9.6.0-alpha.2 and 8.6.28.