CVE-2026-56351

n8n - SQL Injection in MySQL, PostgreSQL, and Microsoft SQL Nodes

Published Jun 24, 2026 CVSS 4.0 · 5.3 Medium EPSS < 1% KEV · Not listed
Description
n8n before version 2.4.0 contains a sql injection vulnerability in MySQL, PostgreSQL, and Microsoft SQL nodes that allows authenticated users to inject arbitrary SQL through unescaped identifier values in node configuration parameters. Attackers with workflow creation permissions can supply specially crafted table or column names to execute unauthorized database commands and compromise data integrity.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-f3f2-mcxc-pwjx n8n: SQL Injection in MySQL, PostgreSQL, and Microsoft SQL nodes
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description n8n before version 2.4.0 contains a sql injection vulnerability in MySQL, PostgreSQL, and Microsoft SQL nodes that allows authenticated users to inject arbitrary SQL through unescaped identifier values in node configuration parameters. Attackers with workflow creation permissions can supply specially crafted table or column names to execute unauthorized database commands and compromise data integrity.
Title n8n - SQL Injection in MySQL, PostgreSQL, and Microsoft SQL Nodes
First Time appeared N8n
N8n n8n
Weaknesses CWE-89
CPEs cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:*
Vendors & Products N8n
N8n n8n
References
Metrics cvssV3_1

{'score': 8.2, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N'}

cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Jun 24, 2026, 12:42 PM
Reserved
Jun 20, 2026, 6:13 PM
Status
Analyzed
Published
Jun 24, 2026, 1:16 PM
Modified
Jun 26, 2026, 2:01 AM