CVE-2026-3121
Medium
Description
A flaw was found in Keycloak. An administrator with `manage-clients` permission can exploit a misconfiguration where this permission is equivalent to `manage-permissions`. This allows the administrator to escalate privileges and gain control over roles, users, or other administrative functions within the realm. This privilege escalation can occur when admin permissions are enabled at the realm level.
SeverityMedium
CVSS6.5
Exploit probability—
Product
Redhat Build Of Keycloak
PublishedMar 26, 2026
First seenMar 26, 2026
Weakness typeCWE-266CWE-266
How to fix
Update
- org.keycloak:keycloak-services26.5.6 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| redhat build_of_keycloak | No range specified | — |
| redhat jboss_enterprise_application_platform | 8.0.0 | — |
| redhat jboss_enterprise_application_platform_expansion_pack | No range specified | — |
| redhat single_sign-on | 7.0 | — |
| org.keycloak:keycloak-servicesMaven | v < 26.5.6 | 26.5.6 |
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