Vulnerability Description
n8n is an open source workflow automation platform. Prior to versions 2.10.1, 2.9.3, and 1.123.22, an authenticated user with permission to create or modify workflows could leverage the Merge node's SQL query mode to execute arbitrary code and write arbitrary files on the n8n server. The issues have been fixed in n8n versions 2.10.1, 2.9.3, and 1.123.22. Users should upgrade to one of these versions or later to remediate all known vulnerabilities. If upgrading is not immediately possible, administrators should consider the following temporary mitigations. Limit workflow creation and editing permissions to fully trusted users only, and/or disable the Merge node by adding `n8n-nodes-base.merge` to the `NODES_EXCLUDE` environment variable. These workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| N8N | N8N | < 1.123.22 |
Related Weaknesses (CWE)
References
- https://github.com/n8n-io/n8n/releases/tag/[email protected]Release Notes
- https://github.com/n8n-io/n8n/releases/tag/[email protected]Release Notes
- https://github.com/n8n-io/n8n/releases/tag/[email protected]Release Notes
- https://github.com/n8n-io/n8n/security/advisories/GHSA-wxx7-mcgf-j869Vendor Advisory
FAQ
What is CVE-2026-27497?
CVE-2026-27497 is a vulnerability with a CVSS score of 8.8 (HIGH). n8n is an open source workflow automation platform. Prior to versions 2.10.1, 2.9.3, and 1.123.22, an authenticated user with permission to create or modify workflows could leverage the Merge node's S...
How severe is CVE-2026-27497?
CVE-2026-27497 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-27497?
Check the references section above for vendor advisories and patch information. Affected products include: N8N N8N.