PT-2026-51781 · N8N · N8N

Published 2026-06-24 · Updated 2026-06-24 · CVE-2026-56351

Mitre

CVSS v3.1

8.2

High

Base vector

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

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.

Fix

SQL injection

Weakness Enumeration

CWE-89

Related Identifiers

CVE-2026-56351

Affected Products

N8N

References · 3

• https://github.com/n8n-io/n8n/security/advisories/GHSA-f3f2-mcxc-pwjx · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-56351 · Security Note
• https://vulncheck.com/advisories/n8n-sql-injection-in-mysql-postgresql-and-microsoft-sql-nodes · Note