CVE-2025-57755: @musistudio/claude-code-router has improper CORS configuration

August 21, 2025

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.

References

github.com/advisories/GHSA-8hmm-4crw-vm2c
github.com/musistudio/claude-code-router
github.com/musistudio/claude-code-router/issues/549
github.com/musistudio/claude-code-router/security/advisories/GHSA-8hmm-4crw-vm2c
nvd.nist.gov/vuln/detail/CVE-2025-57755

Code Behaviors & Features

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