CVE-2026-72768
MediumCVSS 6.4Exploitation Probability (EPSS)
Low risk14th percentile - higher than 14% of all known CVEs
Summary
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.
Risk Assessment
An attacker could access internal services and read their responses, potentially leading to exposure of sensitive information or further attacks. This is a serious risk to confidentiality and integrity.
Recommendation
Update n8n to version 2.32.1 or later to fix the SSRF protection bypass in the MCP Client node.
Original NVD description (English source)
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.