CVE-2026-72768: n8n

High severity, CVSS 8.3. EPSS: 0.4% chance of exploitation in the next 30 days.

n8n versions before 2.32.1 contain a server-side request forgery protection bypass vulnerability in the MCP Client node that allows authenticated users to bypass SSRF protections. Attackers can craft workflows that send requests to internal or blocked hosts without routing through SSRF protection, exposing internal services and reading responses back through the workflow.

Affected products

• n8n n8n: from 2.31.0, before 2.31.5 (fixed in 2.31.5); version 2.32.0 only

Published 2026-08-11. Last modified 2026-09-01.