CVE-2026-33660

n8n is an open source workflow automation platform. Prior to versions 2.14.1, 2.13.3, and 1.123.26, an authenticated user with permission to create or modify workflows could use the Merge node's "Combine by SQL" mode to read local files on the n8n host and achieve remote code execution. The AlaSQL sandbox did not sufficiently restrict certain SQL statements, allowing an attacker to access sensitive files on the server or even compromise the instance. The issue has been fixed in n8n versions 2.14.1, 2.13.3, and 1.123.26. Users should upgrade to one of these versions or later to remediate the vulnerability. 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 v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/n8n-io/n8n/security/advisories/GHSA-58qr-rcgv-642v	Vendor Advisory Mitigation

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:n8n:n8n::::::node.js::*
	cpe:2.3:a:n8n:n8n::::::node.js::*
	cpe:2.3:a:n8n:n8n:2.14.0:::::node.js::

History

30 Mar 2026, 14:54

Type	Values Removed	Values Added
CPE		cpe:2.3:a:n8n:n8n::::::node.js::* cpe:2.3:a:n8n:n8n:2.14.0:::::node.js::
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 8.8
References	~~() https://github.com/n8n-io/n8n/security/advisories/GHSA-58qr-rcgv-642v -~~	() https://github.com/n8n-io/n8n/security/advisories/GHSA-58qr-rcgv-642v - Vendor Advisory, Mitigation
CWE		CWE-89
First Time		N8n n8n N8n

Information

Published : 2026-03-25 18:16

Updated : 2026-03-30 14:54

NVD link : CVE-2026-33660

Mitre link : CVE-2026-33660

CVE.ORG link : CVE-2026-33660

JSON object : View

Products Affected

n8n

n8n

CWE

CWE-94

Improper Control of Generation of Code ('Code Injection')

CWE-89

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

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Prior to versions 2.14.1, 2.13.3, and 1.123.26, an authenticated user with permission to create or modify workflows could use the Merge node's \"Combine by SQL\" mode to read local files on the n8n host and achieve remote code execution. The AlaSQL sandbox did not sufficiently restrict certain SQL statements, allowing an attacker to access sensitive files on the server or even compromise the instance. The issue has been fixed in n8n versions 2.14.1, 2.13.3, and 1.123.26. Users should upgrade to one of these versions or later to remediate the vulnerability. 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."}, {"lang": "es", "value": "n8n es una plataforma de automatizaci\u00f3n de flujos de trabajo de c\u00f3digo abierto. Antes de las versiones 2.14.1, 2.13.3 y 1.123.26, un usuario autenticado con permiso para crear o modificar flujos de trabajo podr\u00eda usar el modo 'Combine by SQL' del nodo Merge para leer archivos locales en el host de n8n y lograr ejecuci\u00f3n remota de c\u00f3digo. El sandbox de AlaSQL no restring\u00eda suficientemente ciertas sentencias SQL, permitiendo a un atacante acceder a archivos sensibles en el servidor o incluso comprometer la instancia. El problema ha sido solucionado en las versiones de n8n 2.14.1, 2.13.3 y 1.123.26. Los usuarios deben actualizar a una de estas versiones o posteriores para remediar la vulnerabilidad. Si la actualizaci\u00f3n no es posible de inmediato, los administradores deben considerar las siguientes mitigaciones temporales: Limitar los permisos de creaci\u00f3n y edici\u00f3n de flujos de trabajo solo a usuarios de plena confianza, y/o deshabilitar el nodo Merge a\u00f1adiendo `n8n-nodes-base.merge` a la variable de entorno `NODES_EXCLUDE`. Estas soluciones provisionales no remedian completamente el riesgo y solo deben usarse como medidas de mitigaci\u00f3n a corto plazo."}], "lastModified": "2026-03-30T14:54:07.600", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "C5E7FBA6-35F5-426D-8BAA-25C7913A966A", "versionEndExcluding": "1.123.27"}, {"criteria": "cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "8ACE2AF2-6C9A-41A8-9883-6F2149E24151", "versionEndExcluding": "2.13.3", "versionStartIncluding": "2.0.0"}, {"criteria": "cpe:2.3:a:n8n:n8n:2.14.0:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "22BDDF0A-0915-4FF2-920C-E75F2F2F677D"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}