CVE-2026-63127 | Model Context Protocol RMCP SDK up to 1.x OAuth Implementation auth.rs discover_oauth_server_via_resource_metadata improper authorization (EUVD-2026-80824)

A vulnerability classified as problematic was found in Model Context Protocol RMCP SDK up to 1.x. This impacts the function discover_oauth_server_via_resource_metadata of the file crates/rmcp/src/transport/auth.rs of the component OAuth Implementation. Such manipulation leads to improper authorization. This vulnerability is documented as...