Privilege escalation in Red Hat Build Of Keycloak

CVE-2026-4629

A flaw was found in Keycloak. A highly privileged user with `manage-clients` permission can exploit this vulnerability by injecting a hardcoded role mapper into any client. This action allows the user to bypass existing scope restrictions…

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-4629?
CVE-2026-4629 is a medium-severity vulnerability in Red Hat Build Of Keycloak, classified under Incorrect Privilege Assignment. CVSS score: 6.5/10. Published 2026-06-30.
How severe is CVE-2026-4629?
Medium severity. CVSS v3 base score is 6.5 out of 10.