7.2
High
CVE-2026-17526 Keycloak is an open-source identity and access management solution
Description
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.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Red Hat build of Keycloak 26.4 26.4 | earliest → < 26.4-26 | 26.4-26 |
| Red Hat build of Keycloak 26.4.16 | Versions not published | |
| Red Hat build of Keycloak 26.6 26.6 | earliest → < 26.6-20 | 26.6-20 |
| Red Hat build of Keycloak 26.6.7 | Versions not published | |
| Red Hat Data Grid 8 | Versions not published | |
| Red Hat JBoss Enterprise Application Platform Expansion Pack | Versions not published | |
| Red Hat Single Sign-On 7 | Versions not published |
Other CVEs of Red Hat build of Keycloak 26.4
The 116 CVEs of Red Hat build of Keycloak 26.4 →
CVE-2026-97848
Keycloak-services: keycloak-services: protocol mapper with jsontype=json bypasses token sanitization
6.5
Medium
CVE-2026-97367
Keycloak-services: keycloak-services: dcr azp and sid claim substitution allows account rest session takeover
6.4
Medium
CVE-2026-96547
Keycloak-services: keycloak-services: dcr registration-time claim-path gap allows forging realm_access.roles
6.5
Medium
CVE-2026-97847
Keycloak-services: keycloak-services: client manager can substitute sessionless token principal via hardcoded-claim mappers to obtain realm administrator authority
7.1
High