What is CVE-2026-16106?

CVE-2026-16106 is a medium-severity vulnerability in Red Hat Build Of Keycloak, classified under Missing Authorization. CVSS score: 4.9/10. Published 2026-07-17.

How severe is CVE-2026-16106?

Medium severity. CVSS v3 base score is 4.9 out of 10.

Auth bypass in Red Hat Build Of Keycloak

CVE-2026-16106

A flaw was found in the admin REST API of Keycloak, a solution for identity and access management. The issue occurs when a delegated administrator attempts to remove a child role from a composite role. Due to missing authorization checks…

Vulnerability class: Broken Access Control

CVSS v3 metric

CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N.

Affected products

Red Hat Build Of Keycloak
Red Hat Data Grid 8
Red Hat Jboss Enterprise Application Platform Expansion Pack
Red Hat Single Sign-on 7

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

secalert@redhat.com (x_refsource_REDHAT, vdb-entry)
secalert@redhat.com (x_refsource_REDHAT, issue-tracking)

Frequently asked questions

What is CVE-2026-16106?: CVE-2026-16106 is a medium-severity vulnerability in Red Hat Build Of Keycloak, classified under Missing Authorization. CVSS score: 4.9/10. Published 2026-07-17.
How severe is CVE-2026-16106?: Medium severity. CVSS v3 base score is 4.9 out of 10.