CVE-2026-56679 Details
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.
A vulnerability in 9Router versions through 0.5.2 allows authenticated users to bypass application-wide authentication by exploiting the PATCH /api/settings endpoint. This endpoint lacks a field whitelist, enabling users to modify security-sensitive settings such as requireLogin. Disabling requireLogin removes authentication requirements across the application, exposing protected routes like /api/keys and /api/providers to unauthenticated users. The issue arises from unfiltered mass assignment, where the PATCH handler indiscriminately applies request body data to persistent settings, including critical fields that should not be user-modifiable.
Users are advised to update to 9Router version 0.5.4 or later, where this vulnerability has been fixed.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Jul 15, 2026CISA-ADP
Assessed Jul 16, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/decolua/9router/security/advisories/GHSA-vmjq-hvgq-2wv4 | CISA-ADP | AdvisoryExploitRemedyVendor |
| https://github.com/decolua/9router/security/advisories/GHSA-vmjq-hvgq-2wv4 | [email protected] | AdvisoryExploitRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-915 | Improperly Controlled Modification of Dynamically-Determined Object Attributes | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| decolua 9router | <= 0.5.2 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 16, 2026 | CVE Modified | CISA-ADP |
| Jul 15, 2026 | New CVE Received | [email protected] |