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GHSA-664h-gpgq-h6xx
No affected components available
Impact
Three mutating endpoints in the evaluation test runs controller authorized state-changing actions using workflow:read instead of the action-appropriate workflow:execute scope. An authenticated user with project:viewer role on a project could start new evaluation test runs, cancel in-flight runs, and delete run records for workflows they only had read access to.
This issue only affects instances with Advanced Permissions (Enterprise/Cloud) where projects and viewer roles are in use.
Patches
The issue has been fixed in n8n versions 1.123.55, 2.25.7, and 2.26.2. 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 project membership to fully trusted users only.
- Avoid granting viewer access to projects containing sensitive workflows.
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. The impact is confined to the system where the vulnerability exists. There is a low impact on the integrity of the data. There is a low impact on the availability of the system.
Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.
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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