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.
Advisories
No advisories yet.
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Thu, 09 Jul 2026 14:30:00 +0000
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ssvc
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Wed, 08 Jul 2026 14:15:00 +0000
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| Description | 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. | |
| Title | n8n - SQL Injection in MySQL v1 executeQuery Operation via Expression Interpolation | |
| First Time appeared |
N8n
N8n n8n |
|
| Weaknesses | CWE-89 | |
| CPEs | cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:* | |
| Vendors & Products |
N8n
N8n n8n |
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| References |
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| Metrics |
cvssV4_0
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Projects
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-07-09T13:39:51.132Z
Reserved: 2026-07-04T12:17:14.302Z
Link: CVE-2026-59257
Updated: 2026-07-09T13:39:46.215Z
No data.
No data.
OpenCVE Enrichment
Updated: 2026-07-09T10:00:15Z
Weaknesses