[CVE-2026-65591] n8n contains a sanitizer bypass vulnerability in the legacy expression evaluator's computed-member h…

Descripción técnica

n8n contains a sanitizer bypass vulnerability in the legacy expression evaluator's computed-member handler. An authenticated user with workflow create or modify permissions can craft a malicious expression to bypass the sanitizer and achieve host-level code execution as the n8n process. The legacy expression engine is the default in affected versions. Fixed in n8n 1.123.64, 2.29.8, and 2.30.1.

Puntuación CVSS

Score: 8.8/10 — Severidad: HIGH — Estado NIST: Analyzed

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Productos afectados

N8n — N8n

Debilidades (CWE)

CWE-917

Fuente oficial

Publicado en NIST NVD.