CVE-2026-16105

MEDIUM SEVERITY

CVSS Score & Metrics

Base Score

4.9 / 10

Vector String

                                        CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N                                    

Vulnerability Description

A flaw was found in the RoleContainerResource component of Keycloak. The issue occurs because certain name-based endpoints in the admin REST API do not properly enforce authorization checks when managing composite roles. This allows a delegated administrator with manage-realm permissions to remove essential child roles from built-in admin roles, potentially disrupting administrative functions within a realm.

Vulnerability Details

Published Date

July 31, 2026

Last Modified

July 31, 2026

Source

NVD

Vendor

Red Hat

Product

Red Hat Build of Keycloak, Red Hat Data Grid 8, Red Hat JBoss Enterprise Application Platform Expansion Pack, Red Hat Single Sign-On 7

External References

https://access.redhat.com/security/cve/CVE-2026-16105
https://bugzilla.redhat.com/show_bug.cgi?id=2501738

CVE-2026-16105

CVSS Score & Metrics

Vulnerability Description

Vulnerability Details

External References

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