CVE-2026-72763

n8n before 1.123.67, 2.31.5, and 2.32.1 validates credential-access only for a node's top-level credentials and not for credentials referenced inside an Execute Sub-workflow node's inline workflow JSON. A member with Editor access to a shared workflow (when workflow sharing is enabled) who knows a target credential's ID can reference that credential in the inline JSON; it passes save-time and runtime validation and resolves in the parent workflow's project context, allowing the attacker to use or exfiltrate credentials they are not permitted to access.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/n8n-io/n8n/security/advisories/GHSA-cj9h-qx8g-pq2g	Mitigation Vendor Advisory
https://www.vulncheck.com/advisories/n8n-before-credential-exfiltration-via-sub-workflow	Third Party Advisory

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:2.32.0:::::node.js::

History

23 Oct 2026, 19:10

Type	Values Removed	Values Added
Summary		(es) n8n antes de 1.123.67, 2.31.5 y 2.32.1 valida el acceso a credenciales solo para las credenciales de nivel superior de un nodo y no para las credenciales referenciadas dentro del JSON de flujo de trabajo en línea de un nodo Execute Sub-workflow. Un miembro con acceso de Editor a un flujo de trabajo compartido (cuando el uso compartido de flujos de trabajo está habilitado) que conoce el ID de una credencial objetivo puede referenciar esa credencial en el JSON en línea; pasa la validación en tiempo de guardado y en tiempo de ejecución y se resuelve en el contexto del proyecto del flujo de trabajo padre, permitiendo al atacante usar o exfiltrar credenciales a las que no tiene permiso para acceder.

Information

Published : 2026-08-11 13:19

Updated : 2026-10-29 20:17

NVD link : CVE-2026-72763

Mitre link : CVE-2026-72763

CVE.ORG link : CVE-2026-72763

JSON object : View

Products Affected

n8n

n8n

CWE

CWE-639

Authorization Bypass Through User-Controlled Key

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