{"id":"CVE-2021-27582","aliases":["GHSA-8p36-q63g-68qh"],"url":"https://o3.security/vulnerability/CVE-2021-27582","summary":"Autobinding vulnerability in MITREid Connect","details":"org/mitre/oauth2/web/OAuthConfirmationController.java in the OpenID Connect server implementation for MITREid Connect through 1.3.3 contains a Mass Assignment (aka Autobinding) vulnerability. This arises due to unsafe usage of the @ModelAttribute annotation during the OAuth authorization flow, in which HTTP request parameters affect an authorizationRequest.","published":"2021-02-23T18:15:14.363Z","modified":"2026-07-09T01:06:33.468260Z","cvss":{"score":9.1,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"Maven","name":"org.mitre:openid-connect-parent","fixedVersion":null}],"fix":{"url":"https://github.com/mitreid-connect/OpenID-Connect-Java-Spring-Server/commit/7eba3c12fed82388f917e8dd9b73e86e3a311e4c","label":"mitreid-connect/OpenID-Connect-Java-Spring-Server@7eba3c1"},"references":[{"type":"FIX","url":"https://github.com/mitreid-connect/OpenID-Connect-Java-Spring-Server/commit/7eba3c12fed82388f917e8dd9b73e86e3a311e4c"},{"type":"EVIDENCE","url":"http://agrrrdog.blogspot.com/2017/03/autobinding-vulns-and-spring-mvc.html"},{"type":"EVIDENCE","url":"https://portswigger.net/research/hidden-oauth-attack-vectors"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-09T01:06:33.468260Z"}}