CVE Catalog

CVE-2026-42226

High
Published: Translated: NVD NIST

Summary

n8n is an open source workflow automation platform. Prior to versions 1.123.33 and 2.17.5, the dynamic-node-parameters endpoints did not verify whether the authenticated caller was authorized to use a supplied credential reference. This allowed an attacker to use another user's credentials for authentication against attacker-controlled infrastructure.

Risk Assessment

The organization may be exposed to API key theft, leading to unauthorized access to resources and data. An attacker could leverage another user's credentials to perform actions on behalf of the victim.

Recommendation

It is recommended to update n8n to versions 1.123.33, 2.17.5, or 2.18.0 to patch this vulnerability. Additionally, conducting an audit of credential access within the organization is advisable.

Related vulnerabilities

Original NVD description (English source)

n8n is an open source workflow automation platform. Prior to versions 1.123.33 and 2.17.5, the dynamic-node-parameters endpoints did not verify whether the authenticated caller was authorized to use a supplied credential reference. An authenticated user with access to a shared workflow could supply a foreign credential ID in the request body, causing the backend to decrypt and use that credential in a helper execution path where the caller also controls the destination URL. This allowed the caller to force the backend to authenticate against attacker-controlled infrastructure using a credential belonging to another user, effectively exfiltrating a reusable API key. The issue is not limited to any single node type; any node that resolves credentials dynamically through these endpoints may be affected. This issue has been patched in versions 1.123.33, 2.17.5, and 2.18.0.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS