Vulnerability Database

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Total vulnerabilities in the database

n8n: Wrong OAuth Scope On Evaluations Test Run Creation Endpoint — n8n

Improper Access Control

Impact

The POST /workflows/{workflowId}/test-runs/new endpoint authorized access using workflow:read rather than workflow:execute. An authenticated user with read-only access to a workflow could trigger a real evaluation test run, causing the workflow to execute via the internal workflow runner. This could result in unintended outbound API calls, data mutations, or other side effects in downstream systems connected to the workflow.

This issue primarily affects instances where the Evaluations feature is in use and where users may have workflow:read access without workflow:execute access, such as deployments using RBAC project roles.

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 workflow access to fully trusted users only.
  • Audit project role assignments and limit workflow:read access on sensitive workflows to users who should also be permitted to execute them.

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

  • Published: Jun 16, 2026
  • Updated: Jun 17, 2026
  • GHSA: GHSA-hv7x-3x78-gx53
  • Severity: Medium
  • Exploit:
  • CISA KEV:

CVSS v3:

  • Severity: High
  • Score: 7.4
  • AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
Software Affected versions
Node.js icon n8n < 1.123.55
Node.js icon n8n >= 2.26.0, < 2.26.2
Node.js icon n8n >= 2.0.0-rc.0, < 2.25.7

Frequently Asked Questions

A security vulnerability is a weakness in software, hardware, or configuration that can be exploited to compromise confidentiality, integrity, or availability. Many vulnerabilities are tracked as CVEs (Common Vulnerabilities and Exposures), which provide a standardized identifier so teams can coordinate patching, mitigation, and risk assessment across tools and vendors.

CVSS (Common Vulnerability Scoring System) estimates technical severity, but it doesn't automatically equal business risk. Prioritize using context like internet exposure, affected asset criticality, known exploitation (proof-of-concept or in-the-wild), and whether compensating controls exist. A "Medium" CVSS on an exposed, production system can be more urgent than a "Critical" on an isolated, non-production host.

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Recurring findings usually come from incomplete Asset Discovery, inconsistent patch management, inherited images, and configuration drift. In modern environments, you also need to watch the software supply chain: dependencies, containers, build pipelines, and third-party services can reintroduce the same weakness even after you patch a single host. Unknown or unmanaged assets (often called Shadow IT) are a common reason the same issues resurface.

Use a simple, repeatable triage model: focus first on externally exposed assets, high-value systems (identity, VPN, email, production), vulnerabilities with known exploits, and issues that enable remote code execution or privilege escalation. Then enforce patch SLAs and track progress using consistent metrics so remediation is steady, not reactive.

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