{"id":"CVE-2026-1180","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-1180","summary":" Keycloak’s OpenID Connect Dynamic Client Registration feature affected by Server-Side Request Forgery (SSRF)","details":"A flaw was identified in Keycloak’s OpenID Connect Dynamic Client Registration feature when clients authenticate using private_key_jwt. The issue allows a client to specify an arbitrary jwks_uri, which Keycloak then retrieves without validating the destination. This enables attackers to coerce the Keycloak server into making HTTP requests to internal or restricted network resources. As a result, attackers can probe internal services and cloud metadata endpoints, creating an information disclosure and reconnaissance risk.","published":"2026-01-20T15:33:12Z","modified":"2026-04-02T15:48:48.898411Z","cvss":{"score":5.8,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"org.keycloak:keycloak-adapter-core","fixedVersion":null}],"fix":null,"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-1180"},{"type":"WEB","url":"https://github.com/keycloak/keycloak/issues/45645"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:6477"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:6478"},{"type":"WEB","url":"https://access.redhat.com/security/cve/CVE-2026-1180"},{"type":"WEB","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2430781"},{"type":"PACKAGE","url":"https://github.com/keycloak/keycloak"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-04-02T15:48:48.898411Z"}}