Authorization Bypass Through User-Controlled Key Affecting n8n package, versions <1.123.61>=2.0.0 <2.27.4>=2.28.0 <2.28.1
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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- published19 Jul 2026
- disclosed15 Jul 2026
- creditEdward-x
Introduced: 15 Jul 2026
NewCVE-2026-59259 (opens in a new tab)How to fix?
Upgrade n8n to version 1.123.61, 2.27.4, 2.28.1 or higher.
Overview
n8n is a n8n Workflow Automation Tool
Affected versions of this package are vulnerable to Authorization Bypass Through User-Controlled Key via a mismatch between static validation and the runtime expression engine in external secrets handling. An attacker can access unauthorized secret values by embedding external secret references into credentials that bypass static validation, which are then resolved during workflow execution.
Note: This is only exploitable if an external secrets provider is configured and Advanced Permissions are enabled.