EUVD-2026-97585

Open WebUI from 0.11.1 before 0.11.4 contains an authorization bypass in the OAuth token exchange endpoint, which reads role claims only from the provider's userinfo response and keeps the user's existing role when no roles claim is found, ignoring roles sent only in the ID token. Users with a...

CVE-2026-109283 Open WebUI 0.11.1 before 0.11.4 Authorization Bypass via OAuth Token Exchange

Open WebUI from 0.11.1 before 0.11.4 contains an authorization bypass in the OAuth token exchange endpoint, which reads role claims only from the provider's userinfo response and keeps the user's existing role when no roles claim is found, ignoring roles sent only in the ID token. Users with a...

CVE-2026-109283

Open WebUI versions 0.11.1 before 0.11.4 are vulnerable to an authorization bypass in the OAuth token exchange endpoint. The flaw occurs because the system only reads role claims from the provider's userinfo response and retains the user's existing role if no new claim is found, failing to accoun...