A vulnerability was found in WSO2 Identity Server, Open Banking IAM, Identity Server as Key Manager, Email OTP Authenticator and Carbon Authenticator Library for EmailOTP . It has been rated as problematic . Affected by this vulnerability is an unknown functionality. This manipulation causes observable response discrepancy. This vulnerability appears as CVE-2024-0391 . The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is advised.