CVE-2026-21877

CRITICAL

9.9

Descricao

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.

Detalhes CVE

Pontuacao CVSS v3.19.9

SeveridadeCRITICAL

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

Vetor de ataqueNETWORK

ComplexidadeLOW

Privilegios necessariosLOW

Interacao do usuarioNONE

Publicado1/8/2026

Ultima modificacao1/20/2026

Fontenvd

Avistamentos honeypot0

Produtos afetados

n8n:n8n

Fraquezas (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)

Correlacoes IOC

Sem correlacoes registradas

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