Threats affecting pkg:github/ericc-ch/copilot-api

CVE-2026-6874 is a medium severity vulnerability in the ericc-ch copilot-api up to version 0.7.0. It involves reliance on reverse DNS resolution triggered by manipulation of the Host argument in the /token endpoint of the Header Handler component. The vulnerability can be exploited remotely and has been publicly disclosed. The vendor has not responded to the disclosure, and no official patch or remediation guidance is currently available.

A vulnerability was found in ericc-ch copilot-api up to 0.7.0. The impacted element is the function cors of the file src/server.ts of the component Token Endpoint. Performing a manipulation results in permissive cross-domain policy with untrusted domains. It is possible to initiate the attack remotely. The exploit has been made public and could be used.