VULNERABILITY INTELLIGENCE

CVE-2026-56351

CVSS score9.6 CRITICAL

EPSS probability0.38%

CISA KEVNot currently listed

Published2026-06-24

Last modified2026-06-26

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.