Unable to control script access to namespace

[farukaf]

Version Used: Microsoft.CodeAnalysis.Scripting 4.12.0

Steps to Reproduce:

.csproj

<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
    <OutputType>Exe</OutputType>
    <TargetFramework>net9.0</TargetFramework>
    <ImplicitUsings>enable</ImplicitUsings>
    <Nullable>enable</Nullable>
  </PropertyGroup>

  <ItemGroup>
    <PackageReference Include="Microsoft.CodeAnalysis.Scripting" Version="4.12.0" />
  </ItemGroup>

</Project>

Program.cs

using Microsoft.CodeAnalysis;
using Microsoft.CodeAnalysis.CSharp.Scripting;
using Microsoft.CodeAnalysis.Scripting;
using Microsoft.CodeAnalysis.Scripting.Hosting;

var scriptCode = """ 
            //This throws exception
            //System.Console.WriteLine("Hello from script");

            //This doesnt throws exception
            System.IO.Directory.CreateDirectory("C:\\TEMP\\test");
""";
var options = Empty();
var script = CSharpScript.Create(scriptCode, options, null, new InteractiveAssemblyLoader());
await script.RunAsync();

ScriptOptions Empty()
    => ScriptOptions.Default
    .WithReferences(Array.Empty<MetadataReference>())
    .WithImports();

Expected Behavior: An exception to be throw when using the unreferenced System.IO.*

Actual Behavior: An directory is created using System.IO.Directory

CSharpScript.EvaluateAsync does the same behaviour.
Tryed to find other ways to create the ScriptOptions to limit, but seems this is the more restrict way to create it.