n8n before 1.123.85, 2.43.5, and 2.44.1 Credential Guard Bypass via Execute Sub-workflow

Summary

n8n before 1.123.85, 2.43.5, and 2.44.1 contains a credential guard bypass vulnerability that allows editors of shared workflows to use restricted credentials by loading sub-workflows from URLs or local files. Attackers can configure the Execute Sub-workflow node with source url or localFile to serve content that resolves project credentials and returns their decrypted values.

Remediation

1. Inventory every n8n-io n8n deployment, including staging.
2. Upgrade n8n-io n8n to the fixed version for your release line, listed under Affected versions.
3. Confirm the running version after the upgrade.

References

• Advisoryhttps://github.com/n8n-io/n8n/security/advisories/GHSA-8crx-5h96-q72q
• Advisoryhttps://www.vulncheck.com/advisories/n8n-before-1.123.85-2.43.5-and-2.44.1-credential-guard-bypass-via-execute-sub-workflow