Vulnerability Details CVE-2026-56351
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 11.5%
CVSS Severity
CVSS v3 Score 8.2