n8n MCP Client SSRF Protection Bypass
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 and access internal services.
Disclosed 11 August 2026 · Record updated 13 September 2026
Impact
Authenticated users can bypass SSRF protections to send requests to internal or blocked hosts and read responses through workflows, exposing internal services.
Our coverage
No articles linked to this incident yet.
Sources
- nvd.nist.govhttps://nvd.nist.gov/vuln/detail/CVE-2026-72768
