Authorization Bypass Through User-Controlled Key Affecting @n8n/db package, versions <1.17.2>=1.18.0 <1.18.1
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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- published3 May 2026
- disclosed29 Apr 2026
- creditnkoorty, jjjutla
Introduced: 29 Apr 2026
NewCVE-2026-42227 (opens in a new tab)How to fix?
Upgrade @n8n/db to version 1.17.2, 1.18.1 or higher.
Overview
Affected versions of this package are vulnerable to Authorization Bypass Through User-Controlled Key via the variables API endpoint when an authenticated user with a valid API key scoped to variable:list supplies an arbitrary projectId query parameter. An attacker can access sensitive variables in projects they are not members of by bypassing project membership checks.
Note: This is only exploitable if the deployment is a team instance with multiple projects and the variables feature is enabled.
Workaround
This vulnerability can be mitigated by restricting access and API key issuance to fully trusted users only, and auditing existing project variables for sensitive values and rotating any secrets that may have been exposed.