PT-2026-51414 · N8N · N8N

Vnth4Nhnt · Publicado 2026-06-22 · Atualizado 2026-06-22 · CVE-2026-56348

Mitre

CVSS v3.1

9.1

Crítica

Vetor base

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

n8n before 2.20.0 contains a credential exfiltration vulnerability in the POST /rest/dynamic-node-parameters/options endpoint that allows authenticated users to bypass Allowed HTTP Request Domains restrictions. Attackers with credential access can cause the n8n server to issue HTTP requests with credentials to unauthorized hosts, exfiltrating sensitive authentication data.

Correção

SSRF

Enumeração de Fraquezas

CWE-918

Identificadores relacionados

CVE-2026-56348

Produtos afetados

N8N

Referências · 3

• https://github.com/n8n-io/n8n/security/advisories/GHSA-3875-8gcx-7v46 · Aviso do Fabricante
• https://nvd.nist.gov/vuln/detail/CVE-2026-56348 · Nota de Segurança
• https://vulncheck.com/advisories/n8n-credential-exfiltration-via-allowed-http-request-domains-bypass-in-dynamic-node-parameters-endpoint · Nota