CVE-2026-56351: n8n - SQL Injection in MySQL, PostgreSQL, and Microsoft SQL Nodes
High · CVSS 8.2 (CVSS 3.1)EPSS 0.37%, 31th percentilePublished Updated Assigner: VulnCheck
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.
Vector CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N · CWE-89
Tracked companies
Mapped from the CVE’s affected-product data, NVD CPE matches, vendor advisories or package feeds. A mapping means the vendor’s software is named, not that its hosted service was exposed.
Status incidents that name it
No tracked status incident names this CVE.
Affected vendors and products
n8n: n8n
References
- CVE record on cve.org (opens in new tab)
- NVD entry (opens in new tab)
- github.com/n8n-io/n8n/security/advisories/GHSA-f3f2-mcxc-pwjx (opens in new tab)
- www.vulncheck.com/advisories/n8n-sql-injection-in-mysql-postgresql-and-microsoft-sql-no… (opens in new tab)
- CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (opens in new tab)
- This product uses data from the NVD API but is not endorsed or certified by the NVD. (opens in new tab)
- Known Exploited Vulnerabilities catalog from CISA. (opens in new tab)
- EPSS scores from FIRST (Exploit Prediction Scoring System). (opens in new tab)