{"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-2026-3872"],"ecosystem":"Maven","epss":0.00448,"exploited":false,"fixed_versions":["26.5.7"],"ghsa_id":"GHSA-cjm2-j6cm-6p6m","id":"tcs_01M5N8SKV0S5HBMYA637W7GBZF","modified_at":"2026-09-10T03:50:43.814693562Z","published_at":"2026-04-02T15:31:38Z","references":["https://osv.dev/vulnerability/GHSA-cjm2-j6cm-6p6m","https://nvd.nist.gov/vuln/detail/CVE-2026-3872","https://github.com/keycloak/keycloak/issues/47718","https://github.com/keycloak/keycloak/commit/35a71b00bc856ac402711130f60190d3a24795e7","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-2026-3872","https://bugzilla.redhat.com/show_bug.cgi?id=2445988","https://github.com/keycloak/keycloak"],"severity":{"label":"high","score":7.3},"sources":[{"source":"osv","source_id":"GHSA-cjm2-j6cm-6p6m","url":"https://osv.dev/vulnerability/GHSA-cjm2-j6cm-6p6m"}],"summary":"Keycloak: Redirect URI validation bypass via ..;/ path traversal in OIDC auth endpoint"}