cvedb.io
CVE-2026-42226
HIGH · CVSS 7.5
EPSS exploitation probability: 0%
Published 2026-05-04T19:16:04.563 · Last modified 2026-06-17T10:47:32.500

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. 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 b

Affected products

n8n — n8n

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.