CVE-2026-56351
n8n - SQL Injection in MySQL, PostgreSQL, and Microsoft SQL Nodes
CVSS Score
8.2
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-89 |
| Vendor | n8n |
| Product | n8n |
| Published | Jun 24, 2026 |
| Last Updated | Jun 24, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
None
Affected Versions
n8n / n8n
0 < 2.4.0