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[wasm][coreclr] Attempt to access method <code>System.Delegate.DelegateConstruct</code> results in exception

arch-wasmWebAssembly architectureWebAssembly architecture

area-VM-coreclr

Status: Open.

#121955 In dotnet/runtime;

· radekdoulik opened on Nov 25, 2025

Test failure: Interop/COM/ComWrappers/API/ComWrappersTestsBuiltInComDisabled/ComWrappersTestsBuiltInComDisabled.cmd

arch-arm64

area-Interop-coreclr

blocking-outerloopBlocking the 'runtime-coreclr outerloop' and 'runtime-libraries-coreclr outerloop' runsBlocking the 'runtime-coreclr outerloop' and 'runtime-libraries-coreclr outerloop' runs

in-prThere is an active PR which will close this issue when it is mergedThere is an active PR which will close this issue when it is merged

os-windows

Status: Open.

#111264 In dotnet/runtime;

· v-wenyuxu opened on Jan 10, 2025

JsonSerializer.DeserializeAsyncEnumerable fails on a valid JSON stream that DeserializeAsync handles correctly

area-System.Text.Json

bug

Status: Open.

#118346 In dotnet/runtime;

· rampaa opened on Aug 4, 2025

Support using any dictionary as JsonExtensionData

area-System.Text.Json

enhancementProduct code improvement that does NOT require public API changes/additionsProduct code improvement that does NOT require public API changes/additions

help wanted[up-for-grabs] Good issue for external contributors[up-for-grabs] Good issue for external contributors

wishlistIssue we would like to prioritize, but we can't commit we will get to it yetIssue we would like to prioritize, but we can't commit we will get to it yet

Status: Open.

#31645 In dotnet/runtime;

· kostrse opened on Feb 3, 2020

Audit usages of Marshal.AllocHGlobal for ones that can be replaced with NativeMemory.Alloc

area-System.Runtime.InteropServices

help wanted[up-for-grabs] Good issue for external contributors[up-for-grabs] Good issue for external contributors

Status: Open.

#54297 In dotnet/runtime;

· tannergooding opened on Jun 16, 2021

Process - Unable to obtain output from redirected process when RedirectStandardInput is enabled

area-System.Diagnostics.Process

needs-further-triageIssue has been initially triaged, but needs deeper consideration or reconsiderationIssue has been initially triaged, but needs deeper consideration or reconsideration

Status: Open.

#118752 In dotnet/runtime;

· Latency opened on Aug 14, 2025

Disabling activity trace propagation for a specific HttpClientHandler with underlying BrowserHttpHandler

arch-wasmWebAssembly architectureWebAssembly architecture

area-System.Net.Http

Status: Open.

#85883 In dotnet/runtime;

· uhfath opened on May 7, 2023

[8.0] Long running test timeout: Wasm.Build.Tests.TestAppScenarios.WasmAppBuilderDebugLevelTests.BuildWithExplicitValue

arch-wasmWebAssembly architectureWebAssembly architecture

area-Infrastructure-mono

Known Build ErrorUse this to report build issues in the .NET Helix tabUse this to report build issues in the .NET Helix tab

os-browserBrowser variant of arch-wasmBrowser variant of arch-wasm

os-linuxLinux OS (any supported distro)Linux OS (any supported distro)

Status: Open.

#114698 In dotnet/runtime;

· carlossanlop opened on Apr 15, 2025

[8.0] Timeout - Wasm.Build.Tests.WasmTemplateTests.RunWithDifferentAppBundleLocations

arch-wasmWebAssembly architectureWebAssembly architecture

area-Infrastructure-mono

Known Build ErrorUse this to report build issues in the .NET Helix tabUse this to report build issues in the .NET Helix tab

Status: Open.

#116719 In dotnet/runtime;

· jozkee opened on Jun 16, 2025

<code>GetAsync_ServerNeedsAuthAndNoCredential_StatusCodeUnauthorized</code> got cancelled

arch-wasmWebAssembly architectureWebAssembly architecture

area-System.Runtime.InteropServices.JavaScript

disabled-testThe test is disabled in source code against the issueThe test is disabled in source code against the issue

Status: Open.

#108019 In dotnet/runtime;

· ilonatommy opened on Sep 19, 2024

SslStreamTlsResumeTests.ClientDisableTlsResume_Succeeds failed in CI

area-System.Net.Security

disabled-testThe test is disabled in source code against the issueThe test is disabled in source code against the issue

Known Build ErrorUse this to report build issues in the .NET Helix tabUse this to report build issues in the .NET Helix tab

test-run-coreTest failures in .NET Core test runsTest failures in .NET Core test runs

tracking-external-issueThe issue is caused by external problem (e.g. OS) - nothing we can do to fix it directlyThe issue is caused by external problem (e.g. OS) - nothing we can do to fix it directly

Status: Open.

#103449 In dotnet/runtime;

· stephentoub opened on Jun 13, 2024

Delegate creation with optional methods throw TargetParameterCountException when Dispatcher consumes

area-TypeSystem-coreclr

enhancementProduct code improvement that does NOT require public API changes/additionsProduct code improvement that does NOT require public API changes/additions

Status: Open.

#101400 In dotnet/runtime;

· Aytackydln opened on Apr 7, 2024

using statement does not work with ManagementBaseObject or ManagementObject

area-System.Management

Status: Open.

#117539 In dotnet/runtime;

· cyungmann opened on Jul 11, 2025

Tar APIs pending feedback to address

area-System.Formats.Tar

Status: Open.

#68230 In dotnet/runtime;

· carlossanlop opened on Apr 19, 2022

Intermittent crash in ObjectNative::PulseAll

area-System.Threading

needs-further-triageIssue has been initially triaged, but needs deeper consideration or reconsiderationIssue has been initially triaged, but needs deeper consideration or reconsideration

Status: Open.

#97034 In dotnet/runtime;

· SkadOrdos opened on Jan 16, 2024

[Ping] Consider adding a way to specify a "Source" address while sending a ping.

api-suggestionEarly API idea and discussion, it is NOT ready for implementationEarly API idea and discussion, it is NOT ready for implementation

area-System.Net

Status: Open.

#29248 In dotnet/runtime;

· xforever1313 opened on Apr 12, 2019

.Net 9 - X509CertificateLoader.LoadPkcs12 - private key throws error on certificate load

area-System.Security

discussion

Status: Open.

#109881 In dotnet/runtime;

· JRosado-JRPI opened on Nov 15, 2024

FirstOrNullable and similar method for struct collection

api-needs-workAPI needs work before it is approved, it is NOT ready for implementationAPI needs work before it is approved, it is NOT ready for implementation

area-System.Linq

wishlistIssue we would like to prioritize, but we can't commit we will get to it yetIssue we would like to prioritize, but we can't commit we will get to it yet

Status: Open.

#28650 In dotnet/runtime;

· Thaina opened on Feb 8, 2019

classloader/StaticVirtualMethods/GenericContext/GenericContextTest takes very long under GC stress, times out on OSX-arm64

area-TypeSystem-coreclr

blocking-clean-ci-optionalBlocking optional rolling runsBlocking optional rolling runs

GCStress

test-failure

Status: Open.

#104633 In dotnet/runtime;

· VSadov opened on Jul 9, 2024

Bug Report: Authentication Validation Error (GenericFailure) in .NET8

area-System.Net.Http

needs-further-triageIssue has been initially triaged, but needs deeper consideration or reconsiderationIssue has been initially triaged, but needs deeper consideration or reconsideration

tracking-external-issueThe issue is caused by external problem (e.g. OS) - nothing we can do to fix it directlyThe issue is caused by external problem (e.g. OS) - nothing we can do to fix it directly

Status: Open.

#105574 In dotnet/runtime;

· korovindenis opened on Jul 26, 2024

runtime-community: Failure to build System.Security.Cryptography.Native/opensslshim.c due to overflow in expression with type long

area-Infrastructure

Known Build ErrorUse this to report build issues in the .NET Helix tabUse this to report build issues in the .NET Helix tab

os-linuxLinux OS (any supported distro)Linux OS (any supported distro)

runtime-monospecific to the Mono runtimespecific to the Mono runtime

Status: Open.

#104333 In dotnet/runtime;

· carlossanlop opened on Jul 2, 2024

[wasm][firefox] crit: OpenQA.Selenium.WebDriverException: Failed to decode response from marionette

arch-wasmWebAssembly architectureWebAssembly architecture

area-Infrastructure-mono

disabled-testThe test is disabled in source code against the issueThe test is disabled in source code against the issue

os-browserBrowser variant of arch-wasmBrowser variant of arch-wasm

Status: Open.

#101617 In dotnet/runtime;

· lewing opened on Apr 26, 2024

MemsetMemcpyNullref test fails on mono

area-Codegen-JIT-mono

disabled-testThe test is disabled in source code against the issueThe test is disabled in source code against the issue

Status: Open.

#98628 In dotnet/runtime;

· EgorBo opened on Feb 18, 2024

Consider renaming COM* types in clr native code to CLR*

area-VM-coreclr

help wanted[up-for-grabs] Good issue for external contributors[up-for-grabs] Good issue for external contributors

in-prThere is an active PR which will close this issue when it is mergedThere is an active PR which will close this issue when it is merged

Status: Open.

#86145 In dotnet/runtime;

· huoyaoyuan opened on May 12, 2023

Redundant clearing of top-32 bit before certain calls to PDEP

area-CodeGen-coreclrCLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMICLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI

optimization

Status: Open.

#442 In dotnet/runtime;

· damageboy opened on Dec 2, 2019