[CVE-2026-91931] Flowise before 3.1.4 contains a remote code execution vulnerability in the Custom MCP node that allo…

Descripción técnica

Flowise before 3.1.4 contains a remote code execution vulnerability in the Custom MCP node that allows authenticated attackers to execute arbitrary code by supplying npx package names in the mcpServerConfig parameter. Attackers can invoke npx with attacker-controlled npm packages to execute code on the Flowise server.

Puntuación CVSS

Score: 8.5/10 — Severidad: HIGH — Estado NIST: Received

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

Debilidades (CWE)

CWE-78

Fuente oficial

Publicado en NIST NVD.