{"cve":"CVE-2026-3121","nvd":{"published":"2026-03-26T19:17:06.213","modified":"2026-06-17T10:43:04.877","status":"Modified","description":"A flaw was found in Keycloak. An administrator with `manage-clients` permission can exploit a misconfiguration where this permission is equivalent to `manage-permissions`. This allows the administrator to escalate privileges and gain control over roles, users, or other administrative functions within the realm. This privilege escalation can occur when admin permissions are enabled at the realm level.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","score":7.2},"cwes":["CWE-266"],"references":["https://access.redhat.com/errata/RHSA-2026:6477","https://access.redhat.com/errata/RHSA-2026:6478","https://access.redhat.com/security/cve/CVE-2026-3121","https://bugzilla.redhat.com/show_bug.cgi?id=2442277"],"products":["redhat:build_of_keycloak","redhat:jboss_enterprise_application_platform","redhat:jboss_enterprise_application_platform_expansion_pack","redhat:single_sign-on"],"source":"nvd","synced_at":"2026-10-19T22:28:18.033120106+00:00"},"epss":{"cve":"CVE-2026-3121","score":0.00479,"percentile":0.41396,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-7xf9-4jfc-wgm4","url":"https://osv.dev/vulnerability/GHSA-7xf9-4jfc-wgm4","summary":"Keycloak: manage-clients permission escalates to full realm admin access","modified":"2026-04-06T16:48:04.474631Z","packages":[{"ecosystem":"Maven","name":"org.keycloak:keycloak-services","purl":"pkg:maven/org.keycloak/keycloak-services","ranges":["<26.5.6"],"fixed":["26.5.6"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}