{"action":"Upgrade org.keycloak:keycloak-server to 26.6.4 or later.","affected":[{"fixed":"26.6.4","introduced":"0"}],"component":"org.keycloak:keycloak-server","cve_ids":["CVE-2026-9796"],"ecosystem":"Maven","epss":0.00219,"exploited":false,"fixed_versions":["26.6.4"],"ghsa_id":"GHSA-pq65-77rc-7r8c","id":"tcs_01M5N97W09YYRHH9GDVKQDZ0KP","modified_at":"2026-08-19T00:45:06.924619010Z","published_at":"2026-05-28T06:31:09Z","references":["https://osv.dev/vulnerability/GHSA-pq65-77rc-7r8c","https://nvd.nist.gov/vuln/detail/CVE-2026-9796","https://github.com/keycloak/keycloak/issues/49427","https://github.com/keycloak/keycloak/pull/49624","https://github.com/keycloak/keycloak/commit/39cb8de54c8517efeda4baa8bc314fd40e9c6934","https://access.redhat.com/errata/RHSA-2026:56523","https://access.redhat.com/errata/RHSA-2026:56524","https://access.redhat.com/security/cve/CVE-2026-9796","https://bugzilla.redhat.com/show_bug.cgi?id=2482464","https://github.com/keycloak/keycloak"],"severity":{"label":"medium","score":6.5},"sources":[{"source":"osv","source_id":"GHSA-pq65-77rc-7r8c","url":"https://osv.dev/vulnerability/GHSA-pq65-77rc-7r8c"}],"summary":"Keycloak has a Time-of-check Time-of-use (TOCTOU) Race Condition"}