n8n before 1.123.61, 2.x before 2.27.4, and 2.28.x before 2.28.1 contains a SQL injection vulnerability in the legacy MySQL v1 node's executeQuery operation. The operation substitutes evaluated {{ ... }} expression values directly into the raw SQL string without parameterization. When a workflow uses this operation with expression-sourced values and is connected to an externally-reachable trigger (such as a Webhook node), attacker-controlled input reaching those expressions results in SQL injection, allowing execution of arbitrary SQL with the configured MySQL credentials' privileges. The MySQL v2 node, which uses parameterized queries, is not affected.
References
| Link | Resource |
|---|---|
| https://github.com/n8n-io/n8n/security/advisories/GHSA-hwmj-qg4v-cvg9 | Mitigation Vendor Advisory |
| https://www.vulncheck.com/advisories/n8n-sql-injection-in-mysql-v1-executequery-operation-via-expression-interpolation | Third Party Advisory |
Configurations
Configuration 1 (hide)
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History
08 Jul 2026, 19:09
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 8.8 |
| CPE | cpe:2.3:a:n8n:n8n:2.28.0:*:*:*:*:node.js:*:* cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:* |
|
| First Time |
N8n
N8n n8n |
|
| References | () https://github.com/n8n-io/n8n/security/advisories/GHSA-hwmj-qg4v-cvg9 - Mitigation, Vendor Advisory | |
| References | () https://www.vulncheck.com/advisories/n8n-sql-injection-in-mysql-v1-executequery-operation-via-expression-interpolation - Third Party Advisory |
08 Jul 2026, 14:17
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-07-08 14:17
Updated : 2026-07-09 15:16
NVD link : CVE-2026-59257
Mitre link : CVE-2026-59257
CVE.ORG link : CVE-2026-59257
JSON object : View
Products Affected
n8n
- n8n
CWE
CWE-89
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')