Nil340

Authenticated users can bypass server-side request forgery (SSRF) protections within the MCP Client node. By crafting specific workflows, attackers can send requests to internal or blocked hosts, bypassing the intended security routing to expose internal services and retrieve responses back through the workflow.

n8n is a workflow automation platform. A user authenticated with permissions to create or modify workflows could leverage the "Combine by SQL" mode within the Merge node to read local files on the n8n host and potentially achieve remote code execution. The AlaSQL sandbox lacked sufficient restrictions on certain SQL statements, enabling an attacker to access sensitive files on the server or compromise the instance. The vulnerable component is the Merge node and its use of AlaSQL.

n8n is an open source workflow automation platform. An authenticated user with permission to create or modify workflows could leverage the Merge node's SQL query mode to execute arbitrary code and write arbitrary files on the n8n server. This could potentially allow for full server takeover.

n8n is a workflow automation platform susceptible to arbitrary script injection. An authenticated user with permission to create or modify workflows could inject malicious scripts into pages rendered by the n8n application through various nodes, including the Form Trigger node, Chat Trigger node, Send & Wait node, Webhook Node, and Chat Node. These injected scripts execute in the browser of any user visiting the affected page, potentially leading to session hijacking and account takeover.