<PackageReference Include="System.Security.Permissions" Version="10.0.0-rc.2.25502.107" />

ConfigurationPermissionAttribute

Creates a ConfigurationPermission object that either grants or denies the marked target permission to access sections of configuration files.
using System.Security; using System.Security.Permissions; namespace System.Configuration { [AttributeUsage(AttributeTargets.All, AllowMultiple = true, Inherited = false)] public sealed class ConfigurationPermissionAttribute : CodeAccessSecurityAttribute { public ConfigurationPermissionAttribute(SecurityAction action) : base((SecurityAction)0) { } public override IPermission CreatePermission() { return null; } } }