{"id":"CVE-2026-4628","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-4628","summary":"Keycloak has Improper Access Control that allows attackers with valid credentials to bypass the allowRemoteResourceManagement=false","details":"A flaw was found in Keycloak. An improper Access Control vulnerability in Keycloak’s User-Managed Access (UMA) resource_set endpoint allows attackers with valid credentials to bypass the allowRemoteResourceManagement=false restriction. This occurs due to incomplete enforcement of access control checks on PUT operations to the resource_set endpoint. This issue enables unauthorized modification of protected resources, impacting data integrity.","published":"2026-03-23T09:30:30Z","modified":"2026-09-10T03:50:37.325289760Z","cvss":{"score":4.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"org.keycloak:keycloak-services","fixedVersion":null}],"fix":null,"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-4628"},{"type":"WEB","url":"https://access.redhat.com/security/cve/CVE-2026-4628"},{"type":"WEB","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2450240"},{"type":"WEB","url":"https://github.com/keycloak/keycloak"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-09-10T03:50:37.325289760Z"}}