GHSA-364x-8g5j-x2pr

## Impact An authenticated user with permission to create and share credentials could craft a malicious OAuth2 credential containing a JavaScript URL in the Authorization URL field. If a victim opened the credential and interacted with the OAuth authorization button, the injected script would execute in their browser session.

## Patches The issue has been fixed in n8n versions 2.8.0 and 2.6.4. 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: - Limit credential creation and sharing permissions to fully trusted users only. - Restrict access to the n8n instance to trusted users only.

These workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.