CVE-2026-16106Medium· 4.9▾ SunlitA flaw was found in the admin REST API of Keycloak, a solution for identity and access management. The issue occurs when a delegated administrator attempts to remove a child role from a composite role. Due to missing authorization checks…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 27 · likelihood 0.1 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Aug 31.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
0.3%
Last analysed / modified upstream
0.3% → 0.4%
A flaw was found in the admin REST API of Keycloak, a solution for identity and access management. The issue occurs when a delegated administrator attempts to remove a child role from a composite role. Due to missing authorization checks, an attacker with limited administrative permissions can remove privileged roles they are not authorized to manage, leading to a loss of access for other users and administrators.
build_of_keycloakRefer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-16108Medium· 4.3A flaw was found in the default-groups REST endpoint and realm representation of Keycloak
CVE-2026-18218Medium· 4.2A flaw was found in the TokenManager component of the Keycloak identity management service
CVE-2026-16105Medium· 4.9A flaw was found in the RoleContainerResource component of Keycloak
CVE-2026-18201Medium· 5.5Keycloak provides a way to manage identity providers and organizations through its administrative API
CVE-2026-18573Medium· 6.5A flaw was found in the keycloak-services component of Keycloak, which is used for managing authentication and authorization flows
CVE-2026-18571Medium· 6.6A flaw was found in the user creation component of Keycloak when Fine-Grained Admin Permissions V2 (FGAP V2) is enabled