| Title | decolua 9router >= 0.2.72, < 0.4.1 Origin Validation Error |
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| Description | An authentication bypass vulnerability exists in 9Router in versions >= 0.2.72 and < 0.4.1 due to improper origin validation using the HTTP Host header. The application incorrectly treats requests with a spoofed Host value as trusted local requests, allowing remote attackers to bypass authentication checks. This issue enables unauthorized access to sensitive API endpoints, potentially exposing API keys and allowing modification of system configuration. |
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| Source | ⚠️ https://github.com/decolua/9router/issues/742 |
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| User | brad (UID 97565) |
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| Submission | 05/11/2026 03:49 (3 months ago) |
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| Moderation | 05/31/2026 16:11 (21 days later) |
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| Status | Accepted |
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| VulDB entry | 367548 [decolua 9router up to 0.4.0 HTTP Header src/dashboardGuard.js isAuthenticated Host improper authorization] |
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| Points | 20 |
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