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Security Advisory: Critical vulnerability in n8n 1.65-1.120.4 – upgrade to 1.121.0+ immediately to prevent unauthenticated access via form-based workflows
Description
Security Advisory: Critical vulnerability in n8n Versions 1.65-1.120.4 The RSS signal today is a security advisory from n8n detailing a critical vulnerability affecting self-hosted n8n installations. The flaw concerns certain form-based workflows and, under specific conditions, could allow an unauthenticated remote attacker to access information or compromise the underlying file system. The vulnerability has been fixed in n8n version 1.121.0 (released November 18, 2025), and a patch is now requ
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