@musistudio/claude-code-router has improper CORS configuration
Impact
Due to improper Cross-Origin Resource Sharing (CORS) configuration, there is a risk that user API Keys or equivalent credentials may be exposed to untrusted domains. Attackers could exploit this misconfiguration to steal credentials, abuse accounts, exhaust quotas, or access sensitive data.
Patches
The issue has been patched in v1.0.34.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | @musistudio/claude-code-router | < 1.0.34 | 1.0.34 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:N- Weakness (CWE)
CWE-200, CWE-942- Platform
- npm
- Package
@musistudio/claude-code-router- Disclosed
- 21.08.2025
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-8hmm-4crw-vm2c - CC BY 4.0
Vulnerability history: @musistudio/claude-code-router
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
This is the only known vulnerability of this package.
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