CVE-2026-21877

CRITICAL

9.9

Descripcion

n8n is an open source workflow automation platform. In versions 0.121.2 and below, an authenticated attacker may be able to execute malicious code using the n8n service. This could result in full compromise and can impact both self-hosted and n8n Cloud instances. This issue is fixed in version 1.121.3. Administrators can reduce exposure by disabling the Git node and limiting access for untrusted users, but upgrading to the latest version is recommended.

Detalles CVE

Puntuacion CVSS v3.19.9

SeveridadCRITICAL

Vector CVSSCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Vector de ataqueNETWORK

ComplejidadLOW

Privilegios requeridosLOW

Interaccion usuarioNONE

Publicado1/8/2026

Ultima modificacion1/20/2026

Fuentenvd

Avistamientos honeypot0

Productos afectados

n8n:n8n

Debilidades (CWE)

CWE-94CWE-434

Referencias

https://github.com/n8n-io/n8n/commit/f4b009d00d1f4ba9359b8e8f1c071e3d910a55f6(security-advisories@github.com)

https://github.com/n8n-io/n8n/security/advisories/GHSA-v364-rw7m-3263(security-advisories@github.com)

Correlaciones IOC

Sin correlaciones registradas

This product uses data from the NVD API but is not endorsed or certified by the NVD.