CVE-2026-11986 Keycloak Admin UI REST Extensions: bulk role-removal endpoints fail to perform granular permission checks
Delegated administrators can bypass permission checks to remove privileged roles from other users, disrupting access control in Keycloak.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-11986?
CVE-2026-11986 is a medium-severity missing authorization vulnerability in Redhat Build of Keycloak, published on 11 Jun 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
A flaw was found in the admin-ui-ext component of Keycloak, which provides extended administrative user interface capabilities. The issue occurs because certain bulk role-removal endpoints fail to perform granular permission checks when deleting role mappings. This allows a delegated administrator with limited permissions to remove highly privileged roles from other users or groups, potentially disrupting administrative access control.
Weakness: CWE-425
Which versions are affected by CVE-2026-11986?
3 open source packages ship an affected version, including org.keycloak:keycloak-rest-admin-ui-ext and keycloak. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
org.keycloak:keycloak-rest-admin-ui-ext Maven | All versions | 26.7.0 |
org.keycloak:keycloak-rest-admin-ui-ext Maven | All versions | 26.7.0 |
keycloak Bitnami | From 26.6.0 | 26.6.5 |
Products include Redhat Build of Keycloak.
How do I fix CVE-2026-11986?
Upgrade org.keycloak:keycloak-rest-admin-ui-ext to 26.7.0 or later.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-11986 being exploited?
There is no known exploitation of CVE-2026-11986 in the wild and no public exploit code.
Other vulnerabilities in Redhat Build of Keycloak
- CVE-2026-15572 Keycloak-services: keycloak-services: dcr protocol mapper type-swap policy bypass allows privilege escalation
- CVE-2026-3047 Keycloak SAML Broken has Authentication Bypass by Primary Weakness
- CVE-2026-15573 Keycloak-services: keycloak-services: authorization bypass via unnormalized uri matching in pathmatcher
- CVE-2026-16102 Keycloak-services: keycloak-services: default dcr policy allows role forgery via user property mappers
- CVE-2026-1609 Org.keycloak/keycloak-quarkus-server: keycloak: unauthorized access via jwt authorization grant with disabled users
Sources
Also known as BIT-keycloak-2026-11986, ECHO-673a-913b-24a1, GHSA-6w3v-mcfh-m3q7, MINI-8fgc-r49c-hf47, MINI-vv4r-7phv-9h4h.