CVE-2026-39974

CVE-2026-39974 affects the n8n-mcp component (Model Context Protocol server). In multi-tenant HTTP mode, an authenticated caller with a valid AUTH_TOKEN can trigger SSRF to arbitrary URLs supplied via per-request headers (instance-URL headers). The server reflects HTTP responses back through JSON...

Server-side Request Forgery (SSRF)

Overview n8n-mcp is an Integration between n8n workflow automation and Model Context Protocol MCP Affected versions of this package are vulnerable to Server-side Request Forgery SSRF via the instance-URL header in multi-tenant HTTP mode. An authenticated attacker can cause the server to issue HTT...

PT-2026-24054

In AWS Auth manager, the origin of the SAML authentication has been used as provided by the client and not verified against the actual instance URL. This allowed to gain access to different instances with potentially different access controls by reusing SAML response from other instances. You...