CVE-2026-21858

CRITICAL

10.0

Descripcion

n8n is an open source workflow automation platform. Versions starting with 1.65.0 and below 1.121.0 enable an attacker to access files on the underlying server through execution of certain form-based workflows. A vulnerable workflow could grant access to an unauthenticated remote attacker, resulting in exposure of sensitive information stored on the system and may enable further compromise depending on deployment configuration and workflow usage. This issue is fixed in version 1.121.0.

Detalles CVE

Puntuacion CVSS v3.110.0

SeveridadCRITICAL

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

Vector de ataqueNETWORK

ComplejidadLOW

Privilegios requeridosNONE

Interaccion usuarioNONE

Publicado1/8/2026

Ultima modificacion1/16/2026

Fuentenvd

Avistamientos honeypot0

Productos afectados

n8n:n8n

Debilidades (CWE)

CWE-20

Referencias

https://github.com/n8n-io/n8n/security/advisories/GHSA-v4pr-fm98-w9pg(security-advisories@github.com)

https://www.cyera.com/research-labs/ni8mare-unauthenticated-remote-code-execution-in-n8n-cve-2026-21858(security-advisories@github.com)

Correlaciones IOC

Sin correlaciones registradas

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