Tina: [Broken Access Control] letting any TinaCloud user authorize against any self-hosted site

Summary @tinacms/auth's isAuthorizedreq decides authorization by validating the caller's bearer token against https://identity.tinajs.io/v2/apps/$req.query.clientID/currentUser, where the clientID comes from the request and is never compared to the site's own configured TinaCloud app id. The...

GHSA-G74Q-6G2F-874X Tina: [Broken Access Control] letting any TinaCloud user authorize against any self-hosted site

Summary @tinacms/auth's isAuthorizedreq decides authorization by validating the caller's bearer token against https://identity.tinajs.io/v2/apps/$req.query.clientID/currentUser, where the clientID comes from the request and is never compared to the site's own configured TinaCloud app id. The...

CVE-2026-63506: Authorization Bypass Through User-Controlled Key

Tina is a headless content management system. Prior to @tinacms/auth 1.1.4 and next-tinacms-azure 15.0.1, isAuthorized accepts a request-controlled clientID and asks isUserAuthorized to validate the bearer token against that selected TinaCloud app instead of the self-hosted site's configured app...

PT-2026-94025

Name of the Vulnerable Software and Affected Versions @tinacms/auth versions prior to 1.1.4 next-tinacms-azure versions prior to 15.0.1 Description Tina is a headless content management system. A cross-tenant authorization bypass exists because the isAuthorized function accepts a clientID directl...