CVE-2026-16103Medium· 4.3▾ SunlitA flaw was found in the keycloak-services component of Keycloak. This issue is an incomplete fix for CVE-2026-9798, where brute-force protection checks were added to the Client-Initiated Backchannel Authentication (CIBA) initiation handl…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 23.7 · likelihood 0.1 · exploitation 0
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Exploit-prediction probability, daily snapshots since Aug 31.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.3%
0.3% → 0.3%
A flaw was found in the keycloak-services component of Keycloak. This issue is an incomplete fix for CVE-2026-9798, where brute-force protection checks were added to the Client-Initiated Backchannel Authentication (CIBA) initiation handler but were omitted from the token redemption handler. This allows an attacker with valid client credentials to obtain access and refresh tokens for a user account that has been locked due to brute-force protection, provided the authentication request was started before the lockout occurred and was approved by the user.
build_of_keycloakRefer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-9798Medium· 4.3A flaw was found in Keycloak, an open-source identity and access management solution
CVE-2025-3910Medium· 5.4A flaw was found in Keycloak
CVE-2026-17059Medium· 6.5A flaw was found in the role-users endpoint of the keycloak-services library, which is the core component of the Keycloak identity and access management solution
CVE-2026-9796Medium· 6.5A flaw was found in Keycloak
CVE-2026-16100Medium· 6.5A flaw was found in the user-event metrics recording of Keycloak
CVE-2026-16071Medium· 5.4A flaw was found in the LDAP storage provider of Keycloak, which is used to federate user identities from external directories