{"action":"Upgrade org.keycloak:keycloak-services to 26.5.7 or later.","affected":[{"fixed":"26.5.7","introduced":"0"}],"component":"org.keycloak:keycloak-services","cve_ids":["CVE-2026-4282"],"ecosystem":"Maven","epss":0.00425,"exploited":false,"fixed_versions":["26.5.7"],"ghsa_id":"GHSA-hj93-h7pg-fh6v","id":"tcs_01M5N90VC1CK1A39JVMMQMPMCR","modified_at":"2026-09-10T03:51:01.992975110Z","published_at":"2026-04-02T15:31:39Z","references":["https://osv.dev/vulnerability/GHSA-hj93-h7pg-fh6v","https://nvd.nist.gov/vuln/detail/CVE-2026-4282","https://github.com/keycloak/keycloak/issues/47719","https://github.com/keycloak/keycloak/commit/9046f201125a6fd6be9c116b99d348509d99d4a5","https://access.redhat.com/errata/RHSA-2026:6475","https://access.redhat.com/errata/RHSA-2026:6476","https://access.redhat.com/errata/RHSA-2026:6477","https://access.redhat.com/errata/RHSA-2026:6478","https://access.redhat.com/security/cve/CVE-2026-4282","https://bugzilla.redhat.com/show_bug.cgi?id=2448061","https://github.com/keycloak/keycloak"],"severity":{"label":"high","score":7.4},"sources":[{"source":"osv","source_id":"GHSA-hj93-h7pg-fh6v","url":"https://osv.dev/vulnerability/GHSA-hj93-h7pg-fh6v"}],"summary":"Keycloak: Privilege escalation via forged authorization codes due to SingleUseObjectProvider isolation flaw"}