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GHSA-jp7m-xcgx-57qm
No affected components available
Impact
Due to a mismatch between the static validation check and the runtime expression engine, an authenticated user with credential create or update permissions, but without the externalSecret:list scope, could embed external secret references into credentials in forms the validation did not detect. These references would resolve at workflow execution time, exposing secret values the user was not authorized to access.
This issue only affects instances where an external secrets provider is configured and Advanced Permissions are in use.
Patches
The issue has been fixed in n8n versions 1.123.61, 2.27.4, and 2.28.1. 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:
- Restrict credential creation and update permissions to fully trusted users only.
- Audit existing credentials for unexpected external secret references.
These workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.
The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker needs basic access or low-level privileges. No user interaction is needed for the attacker to exploit this vulnerability.
Limited exploitation activity has been observed. Close monitoring and planned remediation are recommended.
The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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