Impact

Microsoft.Bcl.Memory, a transitive dependency of EnhancedLinq.Async, had a Denial of Service security vulnerability, CVE-2026-26127, thus affecting EnhancedLinq.Async versions that had vulnerable versions of Microsoft.Bcl.Memory as a transitive dependency.

Patches

EnhancedLinq.Async 1.0.0 Beta 3 updates the dependency on System.Linq.AsyncEnumerable to version 10.0.4 or newer which in turn updates the transitive dependency on Microsoft.Bcl.Memory from version 10.0.3 to 10.0.4 or newer, resolving the vulnerability.

Workarounds

No workarounds exist for this vulnerability.

How to fix the issue

To update the EnhancedLinq.Async NuGet package, use one of the following methods:

NuGet Package Manager UI in Visual Studio:

• Open the project in Visual Studio.
• Right-click on the project in Solution Explorer and select "Manage NuGet Packages..." or navigate to "Project > Manage NuGet Packages".
• In the NuGet Package Manager window, select the "Updates" tab. This tab lists packages with available updates from configured package sources.
• Select the package(s) to update. A specific version can be chosen from the dropdown, or the latest available version can be selected.
• Click the "Update" button.

Using the NuGet Package Manager Console in Visual Studio:

• Open the project in Visual Studio.
• Navigate to "Tools > NuGet Package Manager > Package Manager Console".
• To update a specific package to its latest version, use the following Update-Package command:

Update-Package -Id EnhancedLinq.Async

Using the .NET CLI (Command Line Interface):

• Open a terminal or command prompt in the project's directory.
• To update a specific package to its latest version, use the following add package command:

dotnet package update EnhancedLinq.Async

Once the NuGet package reference has been updated, the application must be recompiled and redeployed.

References

• GHSA-32wq-ppwg-3w4m
• dotnet/announcements#384
• https://www.cve.org/CVERecord?id=CVE-2026-26127