GHSA-c8xv-5998-g76h: n8n: HTTP Request Node Pagination Prototype Pollution to RCE

Summary

An authenticated user who can create or modify workflows can trigger global prototype pollution in n8n through an unvalidated pagination parameter in the HTTP Request node. Combined with other techniques, this can lead to RCE on the instance.

Mitigation

Fixed in n8n versions 1.123.43, 2.20.7, and 2.22.1. Upgrade to one of these versions or later. If upgrading is not immediately possible, limit workflow creation and editing permissions to fully trusted users only, and disable the HTTP Request node by adding `n8n-nodes-base.httpRequest` to the `NODES_EXCLUDE` environment variable. These workarounds do not fully remediate the risk and are short-term measures only.

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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