CVE-2026-55502 Cloudreve: OAuth Admin.Read scope can update OneDrive storage policy credentials

Cloudreve is a self-hosted file management and sharing system. Prior to 4.17.0, POST /api/v4/admin/policy/oauth/signin requires only Admin.Read even though GetOauthRedirectService persists caller-supplied OneDrive secret and appid values, allowing an OAuth token without Admin.Write to modify...