Keycloak is an open-source identity and access management solution. A vulnerability was discovered where a user with the impersonation role can impersonate a realm administrator. This allows the attacker to gain full administrative control over the realm, including the ability to manage users, clients, and roles.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
High
Admin privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v3.1
Weakness Type (CWE)
References 6
https://access.redhat.com/errata/RHSA-2026:68276
secalert@redhat.com
https://access.redhat.com/errata/RHSA-2026:68277
secalert@redhat.com
https://access.redhat.com/errata/RHSA-2026:68278
secalert@redhat.com
https://access.redhat.com/errata/RHSA-2026:68280
secalert@redhat.com
https://access.redhat.com/security/cve/CVE-2026-17526
secalert@redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=2507409
secalert@redhat.com