SQL Injection in N8n
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. Att…
Vulnerability class: SQL Injection
CVSS v3 metric
CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N.
Affected products
- N8n — versions 0, 2.4.0
Weakness classification (CWE)
References
- disclosure@vulncheck.com (vendor-advisory)
- disclosure@vulncheck.com (third-party-advisory)
Frequently asked questions
- What is CVE-2026-56351?
- CVE-2026-56351 is a high-severity vulnerability in N8n, classified under SQL Injection. CVSS score: 8.2/10. Published 2026-06-24.
- How severe is CVE-2026-56351?
- High severity. CVSS v3 base score is 8.2 out of 10.