{"id":"CVE-2021-20262","aliases":["GHSA-xf46-8vvp-4hxx"],"url":"https://o3.security/vulnerability/CVE-2021-20262","summary":"Keycloak Missing authentication for critical function","details":"A flaw was found in Keycloak 12.0.0 where re-authentication does not occur while updating the password. This flaw allows an attacker to take over an account if they can obtain temporary, physical access to a user’s browser. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.","published":"2021-03-09T18:15:15.407Z","modified":"2026-08-07T11:31:03.835457466Z","cvss":{"score":6.8,"severity":"MEDIUM","vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"Maven","name":"org.keycloak:keycloak-core","fixedVersion":null}],"fix":null,"references":[{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1933639"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T11:31:03.835457466Z"}}