CVE-2026-21858

CRITICAL

10.0

Descricao

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.

Detalhes CVE

Pontuacao CVSS v3.110.0

SeveridadeCRITICAL

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

Vetor de ataqueNETWORK

ComplexidadeLOW

Privilegios necessariosNONE

Interacao do usuarioNONE

Publicado1/8/2026

Ultima modificacao1/16/2026

Fontenvd

Avistamentos honeypot0

Produtos afetados

n8n:n8n

Fraquezas (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)

Correlacoes IOC

Sem correlacoes registradas

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