diff --git a/tests/Aspire.Hosting.Azure.Tests/AzureCosmosDBEmulatorFunctionalTests.cs b/tests/Aspire.Hosting.Azure.Tests/AzureCosmosDBEmulatorFunctionalTests.cs
index b8b1634c27f..5ac47cbf3fa 100644
--- a/tests/Aspire.Hosting.Azure.Tests/AzureCosmosDBEmulatorFunctionalTests.cs
+++ b/tests/Aspire.Hosting.Azure.Tests/AzureCosmosDBEmulatorFunctionalTests.cs
@@ -22,6 +22,7 @@ public class AzureCosmosDBEmulatorFunctionalTests(ITestOutputHelper testOutputHe
     // [InlineData(true)] // "Using CosmosDB emulator in integration tests leads to flaky tests - https://github.com/dotnet/aspire/issues/5820"
     [InlineData(false)]
     [RequiresDocker]
+    [QuarantinedTest("https://github.com/dotnet/aspire/issues/7345")]
     public async Task VerifyWaitForOnCosmosDBEmulatorBlocksDependentResources(bool usePreview)
     {
         // Cosmos can be pretty slow to spin up, lets give it plenty of time.
diff --git a/tests/Aspire.Hosting.MySql.Tests/MySqlFunctionalTests.cs b/tests/Aspire.Hosting.MySql.Tests/MySqlFunctionalTests.cs
index b8315809e5a..ea0165cc0e2 100644
--- a/tests/Aspire.Hosting.MySql.Tests/MySqlFunctionalTests.cs
+++ b/tests/Aspire.Hosting.MySql.Tests/MySqlFunctionalTests.cs
@@ -377,6 +377,7 @@ await pipeline.ExecuteAsync(async token =>
 
     [Fact]
     [RequiresDocker]
+    [QuarantinedTest("https://github.com/dotnet/aspire/issues/7340")]
     public async Task VerifyEfMySql()
     {
         var cts = new CancellationTokenSource(TimeSpan.FromMinutes(5));
diff --git a/tests/Aspire.Hosting.Tests/MSBuildTests.cs b/tests/Aspire.Hosting.Tests/MSBuildTests.cs
index f4c5768ab43..a611955ea99 100644
--- a/tests/Aspire.Hosting.Tests/MSBuildTests.cs
+++ b/tests/Aspire.Hosting.Tests/MSBuildTests.cs
@@ -3,6 +3,7 @@
 
 using System.Diagnostics;
 using System.Text;
+using Aspire.TestUtilities;
 using Xunit;
 
 namespace Aspire.Hosting.Tests;
@@ -13,7 +14,7 @@ public class MSBuildTests
     /// Tests that when an AppHost has a ProjectReference to a library project, a warning is emitted.
     /// </summary>
     [Fact]
-    [ActiveIssue("https://github.com/dotnet/aspire/issues/8467")]
+    [QuarantinedTest("https://github.com/dotnet/aspire/issues/8467")]
     public void EnsureWarningsAreEmittedWhenProjectReferencingLibraries()
     {
         var repoRoot = MSBuildUtils.GetRepoRoot();
diff --git a/tests/Aspire.Hosting.Tests/OperationModesTests.cs b/tests/Aspire.Hosting.Tests/OperationModesTests.cs
index 5485846f872..36dd5c9e81e 100644
--- a/tests/Aspire.Hosting.Tests/OperationModesTests.cs
+++ b/tests/Aspire.Hosting.Tests/OperationModesTests.cs
@@ -14,6 +14,7 @@ namespace Aspire.Hosting.Tests;
 public class OperationModesTests(ITestOutputHelper outputHelper)
 {
     [Fact]
+    [QuarantinedTest("https://github.com/dotnet/aspire/issues/8400")]
     public async Task VerifyBackwardsCompatableRunModeInvocation()
     {
         // The purpose of this test is to verify that the apphost executable will continue
diff --git a/tests/Aspire.Hosting.Tests/WithHttpCommandTests.cs b/tests/Aspire.Hosting.Tests/WithHttpCommandTests.cs
index fa5a059f9bb..d11184aedf4 100644
--- a/tests/Aspire.Hosting.Tests/WithHttpCommandTests.cs
+++ b/tests/Aspire.Hosting.Tests/WithHttpCommandTests.cs
@@ -161,6 +161,7 @@ public async Task WithHttpCommand_ResultsInExpectedResultForStatusCode(int statu
     [InlineData("get", true)]
     [InlineData("post", false)]
     [Theory]
+    [QuarantinedTest("https://github.com/dotnet/aspire/issues/8514")]
     public async Task WithHttpCommand_ResultsInExpectedResultForHttpMethod(string? httpMethod, bool expectSuccess)
     {
         // Arrange