GHSA-q5wm-mgqx-fv2f
n8n: Instance AI Credential Setup Accepts Unvalidated Probe URL from Fetched Content
Quick fix
GHSA-q5wm-mgqx-fv2f — n8n: upgrade to the fixed version with the command below.
npm install n8n@2.38.2Details
## Impact
Instance AI credential setup accepted a credential test/verification URL without checking it matched the workflow node's origin. Exfiltration required the user to actively inject an attacker-controlled URL into the setup flow. The patch derives the credential destination from the node's own URL and confines authenticated requests, redirects and probes to that origin.
## Patches
The issue has been fixed in n8n versions 2.38.2 and 2.37.7. Users should upgrade to one of these versions or later to remediate the vulnerability.
## Workarounds
If upgrading is not immediately possible, administrators should consider the following temporary mitigations: - Disable the Instance AI module by removing `instance-ai` from the `N8N_ENABLED_MODULES` environment variable if it is not required. - Restrict n8n instance access to fully trusted users only. - Rotate any third-party API credentials that were set up using the Instance AI credential-setup flow on affected versions.
These workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.
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