Incorrect Authorization Affecting n8n package, versions <1.123.55>=2.0.0 <2.25.7>=2.26.0 <2.26.2
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published9 Jul 2026
- disclosed8 Jul 2026
- credit34selen
Introduced: 8 Jul 2026
NewCVE-2026-56776 (opens in a new tab)How to fix?
Upgrade n8n to version 1.123.55, 2.25.7, 2.26.2 or higher.
Overview
n8n is a n8n Workflow Automation Tool
Affected versions of this package are vulnerable to Incorrect Authorization in the evaluations test run creation endpoint (POST /workflows/{workflowId}/test-runs/new), which authorizes against the workflow:read scope instead of workflow:execute. A user with read-only workflow:read access to a workflow can trigger a real evaluation test run that executes the workflow through the internal runner by calling this endpoint, producing unintended outbound API calls, data mutations, or other side effects in connected systems. Exploitation affects instances with the Evaluations feature active and RBAC project roles in use, where a user holds workflow:read without workflow:execute.