CVE-2026-56679
High
Description
9Router is an AI router & token saver. Prior to 0.5.4, the PATCH /api/settings endpoint writes the entire request body to persistent settings without a field whitelist, allowing an authenticated user to set security-critical fields such as requireLogin and disable authentication for the whole application, exposing protected routes such as /api/keys and /api/providers to unauthenticated access. This issue is reported as fixed in version 0.5.4.
SeverityHigh
CVSS8.7
Exploit probability—
Product9router
PublishedJul 15, 2026
First seenJul 15, 2026
Weakness typeCWE-915CWE-915
How to fix
Update
- 9router0.5.4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| 9routernpm | v < 0.5.4 | 0.5.4 |
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