GHSA-jh8h-6c9q-7gmw: n8n has an Authentication Bypass in its Chat Trigger Node
- Identifier
- GHSA-jh8h-6c9q-7gmw
- Published
- Record updated
- Affected
- n8n >= 2.10.0, < 2.10.1, fixed in 2.10.1, released February 25, 2026, 1 day before disclosure
- n8n >= 2.0.0, < 2.9.3, fixed in 2.9.3, released February 25, 2026, 1 day before disclosure
- n8n < 1.123.22, fixed in 1.123.22, released February 25, 2026, 1 day before disclosure
Summary
The Chat Trigger node in n8n can be configured with n8n User Auth, a non-default authentication method. When that configuration is used, the authentication check can be circumvented. The issue requires this non-default configuration to be in place.
Mitigation
The issue has been fixed in n8n versions 2.10.1, 2.9.3, and 1.123.22; users should 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, use a different authentication method for the Chat Trigger node, or restrict network access to the webhook endpoint to trusted origins. These workarounds do not fully remediate the risk and should only be short-term measures.
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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