Missing Authorization Affecting n8n package, versions <1.123.33>=2.0.0-rc.0 <2.17.5
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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- published3 May 2026
- disclosed29 Apr 2026
- creditESPanda666
Introduced: 29 Apr 2026
NewCVE-2026-42226 (opens in a new tab)How to fix?
Upgrade n8n to version 1.123.33, 2.17.5 or higher.
Overview
n8n is a n8n Workflow Automation Tool
Affected versions of this package are vulnerable to Missing Authorization via the dynamic-node-parameters endpoints. An attacker can access and exfiltrate sensitive credentials belonging to other users by supplying a foreign credential ID in the request body, causing the backend to decrypt and use those credentials in a helper execution path where the attacker also controls the destination URL.
Workaround
- This vulnerability can be mitigated by restricting access to fully trusted users only and avoiding sharing workflows with users who should not have access to the referenced credentials.