GHSA-wxx7-mcgf-j869

n8n has Potential Remote Code Execution via Merge Node

Source: GitHub Advisory Database (reviewed) Critical CVE-2026-27497

Packages

Ecosystem	Package	Affected	Fixed in
npm	n8n	< 1.123.22	1.123.22
npm	n8n	>= 2.0.0, < 2.9.3	2.9.3
npm	n8n	>= 2.10.0, < 2.10.1	2.10.1

Details

As written in the advisory (Markdown source, shown as plain text).

## Impact 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. ## Patches 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. ## Workarounds If upgrading is not immediately possible, administrators should consider the following temporary mitigations: - Limit workflow creation and editing permissions to fully trusted users only. - 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.

References

External links from the advisory. They lead to third-party sites.