{"id":"CVE-2026-9792","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-9792","summary":"Keycloak Vulnerable to Improper Handling of Insufficient Permissions or Privilege","details":"A flaw was found in Keycloak's Client Policies, specifically within the `org.keycloak.protocol.oidc` component. When certain condition providers (client-type, client-roles, client-attributes, client-scopes) are used to enforce security restrictions, the `reject-ropc-grant` executor is silently bypassed. This allows an unauthenticated remote attacker to obtain tokens via a Resource Owner Password Credentials (ROPC) grant, even when a policy is explicitly configured to block it. This bypass can lead to unauthorized access and information disclosure.","published":"2026-05-28T06:31:09Z","modified":"2026-07-01T21:30:19.092323061Z","cvss":{"score":6.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N"},"epss":{"score":0.00268,"percentile":0.19039,"asOf":"2026-08-16"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"org.keycloak:keycloak-services","fixedVersion":"26.6.3"},{"ecosystem":"Maven","name":"org.keycloak:keycloak-services","fixedVersion":null}],"fix":{"url":"https://github.com/keycloak/keycloak/pull/49636","label":"keycloak/keycloak#49636"},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-9792"},{"type":"WEB","url":"https://github.com/keycloak/keycloak/issues/49436"},{"type":"WEB","url":"https://github.com/keycloak/keycloak/pull/49636"},{"type":"WEB","url":"https://github.com/keycloak/keycloak/pull/49637"},{"type":"WEB","url":"https://github.com/keycloak/keycloak/commit/13622ee0ffed91fd07ef444be2c858a7f356766d"},{"type":"WEB","url":"https://github.com/keycloak/keycloak/commit/2af73c16a4e49333779bb34bce65461d9af036a4"},{"type":"WEB","url":"https://github.com/keycloak/keycloak/commit/af5e3e8c60842bc1f3a78e6be414fe303f93163d"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:25097"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:25098"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:30049"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:30050"},{"type":"WEB","url":"https://access.redhat.com/security/cve/CVE-2026-9792"},{"type":"WEB","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2482459"},{"type":"PACKAGE","url":"https://github.com/keycloak/keycloak"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-01T21:30:19.092323061Z"}}