CVE-2026-56678 Details
Description
9Router is an AI router & token saver. Prior to 0.5.6, the Kiro API-key validation endpoint POST /api/oauth/kiro/api-key builds an upstream URL using a user-controlled region value, allowing an authenticated attacker to supply a crafted region such as kiro-canary.local:8443# and cause 9Router to send the Kiro validation request to an attacker-controlled host while forwarding the submitted Kiro API key as an Authorization header. This issue is fixed in version 0.5.6.
A server-side request forgery (SSRF) vulnerability has been identified in 9Router versions prior to 0.5.6. The issue arises in the Kiro API-key validation endpoint, where the server constructs an upstream URL using a user-controlled region value. This flaw allows an authenticated attacker to inject a crafted region, causing the server to send a validation request to an attacker-controlled host while forwarding the Kiro API key in the Authorization header. The vulnerability is authenticated and can be exploited by manipulating the region parameter to redirect requests to a malicious server.
Users are advised to update to 9Router version 0.5.6 or later, where this vulnerability has been patched.
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
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/decolua/9router/security/advisories/GHSA-6mwv-4mrm-5p3m | CISA-ADP | AdvisoryExploitRemedyVendor |
| https://github.com/decolua/9router/commit/126aa244c5b51b74ab8c7594e3418fcf4437bf6f | [email protected] | Source CodeVendor |
| https://github.com/decolua/9router/releases/tag/v0.5.6 | [email protected] | Release NotesVendor |
| https://github.com/decolua/9router/security/advisories/GHSA-6mwv-4mrm-5p3m | [email protected] | AdvisoryExploitRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-20 | Improper Input Validation | [email protected] |
| CWE-918 | Server-Side Request Forgery (SSRF) | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| decolua 9router | <= 0.5.2 (semver) |
CPE
Remediation
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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] |