{"id":"CVE-2021-27582","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.","aliases":["GHSA-8p36-q63g-68qh"],"modified":"2026-07-09T01:06:33.468260Z","published":"2021-02-23T18:15:14.363Z","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"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/mitreid-connect/openid-connect-java-spring-server","events":[{"introduced":"0"},{"last_affected":"73459f0348135013952146196d94e0d065f62739"},{"fixed":"7eba3c12fed82388f917e8dd9b73e86e3a311e4c"}],"database_specific":{"cpe":"cpe:2.3:a:mitreid:connect:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"last_affected":"1.3.3"}],"source":["CPE_RANGE","REFERENCES"]}}],"versions":["mitreid-connect-1.3.3","mitreid-connect-1.3.2","mitreid-connect-1.3.1","mitreid-connect-1.3.0","mitreid-connect-1.3.0-RC2","mitreid-connect-1.3.0-RC1","mitreid-connect-1.2.6","mitreid-connect-1.2.5","mitreid-connect-1.2.4","mitreid-connect-1.2.3","mitreid-connect-1.2.2","mitreid-connect-1.2.1","mitreid-connect-1.2.0","mitreid-connect-1.2.0-RC2","mitreid-connect-1.2.0-RC1","mitreid-connect-1.1.9","mitreid-connect-1.1.8","mitreid-connect-1.1.7","mitreid-connect-1.1.6","mitreid-connect-1.1.5","mitreid-connect-1.1.4","mitreid-connect-1.1.3","mitreid-connect-1.1.2","mitreid-connect-1.1.1","mitreid-connect-1.1.0","iss294-0.9","iss294-start","M2-pre-data-model-changes","M-3","M-2","M-1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-27582.json","vanir_signatures_modified":"2026-07-09T01:06:33Z","vanir_signatures":[{"deprecated":false,"digest":{"function_hash":"331323756972400497807701271783561924022","length":3249},"id":"CVE-2021-27582-ba65909a","signature_type":"Function","signature_version":"v1","source":"https://github.com/mitreid-connect/openid-connect-java-spring-server/commit/7eba3c12fed82388f917e8dd9b73e86e3a311e4c","target":{"file":"openid-connect-server/src/main/java/org/mitre/oauth2/web/OAuthConfirmationController.java","function":"confimAccess"}},{"source":"https://github.com/mitreid-connect/openid-connect-java-spring-server/commit/7eba3c12fed82388f917e8dd9b73e86e3a311e4c","target":{"file":"openid-connect-server/src/main/java/org/mitre/oauth2/web/OAuthConfirmationController.java"},"deprecated":false,"digest":{"threshold":0.9,"line_hashes":["259347651145437691049013431933483762765","297901340302487054581137067050141467193","258519029864756625359601058265158894530","80683396604422368032150391326970818942","209744033836646674392746522741592316847"]},"id":"CVE-2021-27582-c27f5ae3","signature_type":"Line","signature_version":"v1"}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"}]}