1 rich Libsyn https://www.libsyn.com 90 600 The MCP standard gave rise to dreams of interconnected agents and nightmares of what those interconnected agents would do with unfettered access to APIs, data, and local systems. Aaron Parecki explains how OAuth's new Client ID Metadata Documents spec provides more security for MCPs and the reasons why the behavior and design of MCPs required a new spec like this. Segment resources: https://aaronparecki.com/2025/11/25/1/mcp-authorization-spec-update https://www.ietf.org/archive/id/draft-ietf-oauth-client-id-metadata-document-00.html https://oauth.net/cross-app-access/ https://oauth.net/2/oauth-best-practice/ Visit https://www.securityweekly.com/asw for all the latest episodes! Show Notes: https://securityweekly.com/asw-360 Application Security Weekly (Audio) https://securityweekly.com/asw <iframe title="Libsyn Player" style="border: none" src="//html5-player.libsyn.com/embed/episode/id/39330315/height/90/theme/custom/thumbnail/yes/direction/forward/render-playlist/no/custom-color/88AA3C/" height="90" width="600" scrolling="no" allowfullscreen webkitallowfullscreen mozallowfullscreen oallowfullscreen msallowfullscreen></iframe> https://assets.libsyn.com/secure/content/196342400