{"id":"CVE-2020-10770","aliases":["GHSA-jh7q-5mwf-qvhw"],"url":"https://o3.security/vulnerability/CVE-2020-10770","summary":"Keycloak vulnerable to Server-Side Request Forgery","details":"A flaw was found in Keycloak before 13.0.0, where it is possible to force the server to call out an unverified URL using the OIDC parameter request_uri. This flaw allows an attacker to use this parameter to execute a Server-side request forgery (SSRF) attack.","published":"2020-12-15T20:15:14.853Z","modified":"2026-10-24T10:30:29.260745508Z","cvss":{"score":5.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":4,"affectedPackages":[{"ecosystem":"Maven","name":"org.keycloak:keycloak-core","fixedVersion":"13.0.0"}],"fix":{"url":"https://github.com/keycloak/keycloak-documentation/pull/1086","label":"keycloak/keycloak-documentation#1086"},"references":[{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1846270"},{"type":"EVIDENCE","url":"http://packetstormsecurity.com/files/164499/Keycloak-12.0.1-Server-Side-Request-Forgery.html"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-10770"},{"type":"WEB","url":"https://github.com/keycloak/keycloak-documentation/pull/1086"},{"type":"WEB","url":"https://github.com/keycloak/keycloak/pull/7714"},{"type":"PACKAGE","url":"https://github.com/keycloak/keycloak"},{"type":"WEB","url":"https://issues.redhat.com/browse/KEYCLOAK-14019"},{"type":"WEB","url":"https://issues.redhat.com/browse/KEYCLOAK-3426"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-24T10:30:29.260745508Z"}}