GitHub Advisoryadvisory · npm

GHSA-wxx7-mcgf-j869 n8n has Potential Remote Code Execution via Merge Node

CRITICAL Published 2026-02-25 Modified 2026-02-27 Official page ↗
Aliases
CVE-2026-27497
Ecosystem
npm
Packages
n8n
Severity
Critical
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Weaknesses
CWE-89, CWE-94
Reviewed
2026-02-25

Affected packages

• npm n8n: < 1.123.22 → fixed in 1.123.22 • npm n8n: >= 2.0.0, < 2.9.3 → fixed in 2.9.3 • npm n8n: >= 2.10.0, < 2.10.1 → fixed in 2.10.1

Description

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.

Related

Alias · CVE (1)

  • CVE-2026-27497 n8n is an open source workflow automation platform. vulnerability

Weakness · CWE (2)

  • CWE-89 Improper Neutralization of Special Elements used in an SQL Command weakness
  • CWE-94 Improper Control of Generation of Code weakness

References