{"id":"CVE-2023-6291","details":"A flaw was found in the redirect_uri validation logic in Keycloak. This issue may allow a bypass of otherwise explicitly allowed hosts. A successful attack may lead to an access token being stolen, making it possible for the attacker to impersonate other users.","aliases":["GHSA-mpwq-j3xf-7m5w"],"modified":"2026-04-10T05:07:17.537779Z","published":"2024-01-26T15:15:08.280Z","references":[{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2023:7855"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2023:7860"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2023:7861"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2024:0798"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2024:0800"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2024:0804"},{"type":"ADVISORY","url":"https://access.redhat.com/security/cve/CVE-2023-6291"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2023:7854"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2023:7856"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2023:7857"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2023:7858"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2024:0799"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2024:0801"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2251407"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/keycloak/keycloak","events":[{"introduced":"0"},{"fixed":"0ccd72b0b06a6d30c17a8f951860be3d6de9dabf"},{"introduced":"0"},{"last_affected":"b60c6d72270e814883631352805348a9d462e8a1"},{"introduced":"0"},{"last_affected":"e6a274ea0e31c6572e795f3372f006c88122539b"}],"database_specific":{"versions":[{"introduced":"0"},{"fixed":"22.0.7"},{"introduced":"0"},{"last_affected":"6.0"},{"introduced":"0"},{"last_affected":"7.0"}]}}],"versions":["1.0-alpha-1","1.0-alpha-1-12062013","1.0-alpha-2","1.0-alpha-3","1.0-beta-1","1.0-beta-2","1.0-beta-4","1.0-final","1.0-rc-1","1.0.0.Final","1.1.0.Beta2","1.3.0.Final","2.4.0.Test","6.0.0","7.0.0"],"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"0"},{"last_affected":"4.11"}]},{"events":[{"introduced":"0"},{"last_affected":"4.12"}]},{"events":[{"introduced":"0"},{"last_affected":"4.9"}]},{"events":[{"introduced":"0"},{"last_affected":"4.10"}]},{"events":[{"introduced":"0"},{"last_affected":"4.9"}]},{"events":[{"introduced":"0"},{"last_affected":"4.10"}]},{"events":[{"introduced":"0"},{"last_affected":"4.9"}]},{"events":[{"introduced":"0"},{"last_affected":"4.10"}]},{"events":[{"introduced":"0"},{"last_affected":"7.6"}]}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-6291.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L"}]}