CVE-2025-58177: n8n stored cross-site scripting in LangChain Chat Trigger initialMessages

Summary

A stored cross-site scripting flaw affects the chatTrigger node in @n8n/n8n-nodes-langchain, part of the n8n workflow automation platform, in versions from 1.24.0 to before 1.107.0. An authorized user can place malicious JavaScript in the initialMessages field and enable public access, so the script runs in the browser of anyone who opens the public chat URL. The attacker can use this for phishing or to steal cookies and other sensitive data.

Mitigation

Fixed in 1.107.0. Updating to 1.107.0 or later is recommended. As a workaround, the affected chatTrigger node can be disabled; no other workarounds are known.

Affected packages in the Exposure Registry

Matched by package name and ecosystem. Each entry shows whether the package delegates to a language model and how many tracked packages depend on it.

• n8nnpmDeclares an LLM dependency

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