n8n: SQL Injection in Snowflake and MySQL Nodes
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- Present
- Impact type
- SQL injection
- Confidentiality · integrity · availability
- None · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-89.
Summary
n8n is an open source workflow automation platform. Prior to versions 1.123.32, 2.17.4, and 2.18.1, the fix for GHSA-f3f2-mcxc-pwjx did not cover the Snowflake node or the legacy MySQL v1 node. Both nodes construct SQL queries by directly interpolating user-controlled table names, column names, and update keys into query strings without identifier escaping, enabling SQL injection against the connected database. This issue has been patched in versions 1.123.32, 2.17.4, and 2.18.1.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| n8n | n8n | before 1.123.32; 2.17.0 to before 2.17.4; 2.18.0 to before 2.18.1 | 1.123.32, 2.17.4, 2.18.1 | Patch available | CNA |
| — | n8n (npm) | before 1.123.32 | 1.123.32 | Patch available | GHSA-hp3c-vfpm-q4f7 |
| — | n8n (npm) | 2.18.0 to before 2.18.1 | 2.18.1 | Patch available | GHSA-hp3c-vfpm-q4f7 |
| — | n8n (npm) | 2.0.0 to before 2.17.4 | 2.17.4 | Patch available | GHSA-hp3c-vfpm-q4f7 |
- n8n Vendorn8n Affected before 1.123.32; 2.17.0 to before 2.17.4; 2.18.0 to before 2.18.1 Fixed in 1.123.32, 2.17.4, 2.18.1 Patch available CNA
- n8n (npm) Vendor— Affected before 1.123.32 Fixed in 1.123.32 Patch available GHSA-hp3c-vfpm-q4f7
- n8n (npm) Vendor— Affected 2.18.0 to before 2.18.1 Fixed in 2.18.1 Patch available GHSA-hp3c-vfpm-q4f7
- n8n (npm) Vendor— Affected 2.0.0 to before 2.17.4 Fixed in 2.17.4 Patch available GHSA-hp3c-vfpm-q4f7
Remediation
- Fix · CNA n8n (n8n-io) Fixed in 1.123.32, 2.17.4, 2.18.1
- Fix · GHSA-hp3c-vfpm-q4f7 n8n (npm) Fixed in 1.123.32 Advisory →
- Fix · GHSA-hp3c-vfpm-q4f7 n8n (npm) Fixed in 2.18.1 Advisory →
- Fix · GHSA-hp3c-vfpm-q4f7 n8n (npm) Fixed in 2.17.4 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2026-42237
- 2026-10-03 Alias added: GHSA-hp3c-vfpm-q4f7
References
More N8n vulnerabilities
- TI-2025-42131 n8n Vulnerable to Remote Code Execution via Expression Injection KEVCVSS 3.1CRITICAL 10.0
- TI-2026-17560 n8n Vulnerable to Unauthenticated File Access via Improper Webhook Request Handling CVSS 3.1CRITICAL 10.0
- TI-2026-01167 Authenticated users can bypass the Expression sandbox mechanism to achieve full remote… CVSS 3.1CRITICAL 9.9
- TI-2026-00644 Sandbox escape in n8n Python task runner allows for arbitrary code execution on the underlying host. CVSS 3.1CRITICAL 9.9
- TI-2025-35293 An arbitrary file upload vulnerability in the Chat Trigger component of N8N v1.95.3… CVSS 3.1HIGH 8.8
- TI-2023-12275 The n8n package 0.218.0 for Node.js allows Escalation of Privileges. CVSS 3.1HIGH 8.8
Sources
- CVE-2026-42237 · CVE Program
- CVE-2026-42237 · NVD
- FIRST EPSS
- GHSA-hp3c-vfpm-q4f7 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences