PT-2026-54040 · N8N · N8N

Jorianwoltjer · Publicado 2026-06-30 · Atualizado 2026-06-30 · CVE-2026-56356

NVD

CVSS v3.1

5.4

Média

Vetor base

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

n8n contains a stored cross-site scripting vulnerability in the Chat Trigger node's Custom CSS field due to a misconfiguration of the sanitize-html library. Affected releases are those before 1.123.27, the 2.0.0 through 2.13.2 line, and 2.14.0 (fixed in 1.123.27, 2.13.3, and 2.14.1). An authenticated user with permission to create or modify workflows can inject JavaScript that bypasses sanitization, resulting in stored XSS against any user who visits the public chat page.

Correção

XSS

Enumeração de Fraquezas

CWE-79

Identificadores relacionados

CVE-2026-56356

Produtos afetados

N8N

Referências · 3

• https://github.com/n8n-io/n8n/security/advisories/GHSA-3c7f-5hgj-h279 · Aviso do Fabricante
• https://vulncheck.com/advisories/n8n-stored-cross-site-scripting-in-chat-trigger-node-custom-css-field · Nota
• https://nvd.nist.gov/vuln/detail/CVE-2026-56356 · Nota de Segurança