Access disruption via unchecked composite-role deletion
Published Jul 17, 2026 · Updated Jul 17, 2026
Incorrect authorization in Red Hat build of Keycloak’s admin REST API allows remote authenticated users to remove privileged child roles. The two composite-role DELETE endpoints check manage permission only on the parent role container and omit the per-child role check enforced when roles are added. A delegated administrator with parent-container management rights can therefore strip roles such as realm-admin from every user or group assigned through the composite, disrupting administrative access and realm functions.
Summary
What happened
Incorrect authorization in Red Hat build of Keycloak’s admin REST API allows remote authenticated users to remove privileged child roles. The two composite-role DELETE endpoints check manage permission only on the parent role container and omit the per-child role check enforced when roles are added. A delegated administrator with parent-container management rights can therefore strip roles such as realm-admin from every user or group assigned through the composite, disrupting administrative access and realm functions.
The record
- CVE
- CVE-2026-16106
- Published
- Jul 17, 2026
- Updated
- Jul 17, 2026
- Vendor
- 389 Directory Server
- Product
- Red Hat build of Keycloak
- Classifications
- CWE-862, T1531
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 17, 2026CVE publishedPublication date reported by the CVE source.
- Jul 17, 2026Record updatedLatest update available in the CVE record.
Exploitability
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What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Public exploit references
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Technologies
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Your stack
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