{"id":"CVE-2018-10894","aliases":["GHSA-xvv8-8wh9-9fh2"],"url":"https://o3.security/vulnerability/CVE-2018-10894","summary":"Keycloak Authentication Error","details":"It was found that SAML authentication in Keycloak 3.4.3.Final incorrectly authenticated expired certificates. A malicious user could use this to access unauthorized data or possibly conduct further attacks.","published":"2018-08-01T17:29:00.347Z","modified":"2026-10-24T10:30:30.112908103Z","cvss":{"score":5.4,"severity":"MEDIUM","vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N"},"epss":{"score":0.00352,"percentile":0.28172,"asOf":"2026-09-08"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"org.keycloak:keycloak-saml-adapter-core","fixedVersion":"4.4.0.Final"},{"ecosystem":"Maven","name":"org.keycloak:keycloak-services","fixedVersion":"4.4.0.Final"}],"fix":{"url":"https://github.com/keycloak/keycloak/commit/812e76c39b1e693e8f11e5549cca2c90631f372e","label":"keycloak/keycloak@812e76c"},"references":[{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2018:3592"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2018:3593"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2018:3595"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2019:0877"},{"type":"FIX","url":"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10894"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2018-10894"},{"type":"WEB","url":"https://github.com/keycloak/keycloak/commit/812e76c39b1e693e8f11e5549cca2c90631f372e"},{"type":"PACKAGE","url":"https://github.com/keycloak/keycloak"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-24T10:30:30.112908103Z"}}