{"id":"CVE-2020-14302","details":"A flaw was found in Keycloak before 13.0.0 where an external identity provider, after successful authentication, redirects to a Keycloak endpoint that accepts multiple invocations with the use of the same \"state\" parameter. This flaw allows a malicious user to perform replay attacks.","modified":"2026-08-18T11:46:14.305573Z","published":"2020-12-15T20:15:15.573Z","references":[{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1849584"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/keycloak/keycloak","events":[{"introduced":"0"},{"fixed":"af1855ebc6a3d025b58b697c9bc32567fb512eec"}],"database_specific":{"cpe":"cpe:2.3:a:redhat:keycloak:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"fixed":"13.0.0"}],"source":"CPE_RANGE"}}],"versions":["2.4.0.Test","1.3.0.Final","1.1.0.Beta2","1.0.0.Final","1.0-final","1.0-rc-1","1.0-beta-4","1.0-beta-2","1.0-beta-1","1.0-alpha-3","1.0-alpha-2","1.0-alpha-1","1.0-alpha-1-12062013"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-14302.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N"}]}