Missing Authentication for Critical Function Affecting 9router package, versions >=0.4.31 <0.4.37
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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Start learning- Snyk IDSNYK-JS-9ROUTER-17817943
- published5 Jul 2026
- disclosed19 May 2026
- creditUnknown
Introduced: 19 May 2026
CVE-2026-46339 (opens in a new tab)How to fix?
Upgrade 9router to version 0.4.37 or higher.
Overview
9router is a 9Router CLI - Start and manage 9Router server
Affected versions of this package are vulnerable to Missing Authentication for Critical Function due to exposing two unauthenticated API endpoints that, when chained together, allow any network-adjacent attacker to execute arbitrary OS commands as the user running the 9router process with zero prerequisites and no credentials required.