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It can be triggered in environments which have millions of offline tokens (> 500,000 users with each having at least 2 saved sessions). 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Missing Role Enforcement on UMA 2.0 Permission Ticket Endpoint Leads to Information Disclosure\nA flaw was found in Keycloak. The User-Managed Access (UMA) 2.0 Protection API endpoint for permission tickets fails to enforce the `uma_protection` role check. This allows any authenticated user with a token issued for a resource server client, even without the `uma_protection` role, to enumerate all permission tickets in the system. This vulnerability partial leads to information 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