Soenneker.Utils.HttpClientCache.Ssrf 4.0.2

Prefix Reserved
.NET 10.0 This package targets .NET 10.0. The package is compatible with this framework or higher. 
dotnet add package Soenneker.Utils.HttpClientCache.Ssrf --version 4.0.2
                    


                    

                
NuGet\Install-Package Soenneker.Utils.HttpClientCache.Ssrf -Version 4.0.2
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package. 
<PackageReference Include="Soenneker.Utils.HttpClientCache.Ssrf" Version="4.0.2" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="Soenneker.Utils.HttpClientCache.Ssrf" Version="4.0.2" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="Soenneker.Utils.HttpClientCache.Ssrf" />
                    


                            Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package. 
paket add Soenneker.Utils.HttpClientCache.Ssrf --version 4.0.2
                    


                    

                
#r "nuget: Soenneker.Utils.HttpClientCache.Ssrf, 4.0.2"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package. 
#:package Soenneker.Utils.HttpClientCache.Ssrf@4.0.2
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package. 
#addin nuget:?package=Soenneker.Utils.HttpClientCache.Ssrf&version=4.0.2
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=Soenneker.Utils.HttpClientCache.Ssrf&version=4.0.2
                    


                            Install as a Cake Tool

alternate text is missing from this package README image alternate text is missing from this package README image alternate text is missing from this package README image

alternate text is missing from this package README image Soenneker.Utils.HttpClientCache.Ssrf

SSRF-safe, DNS-rebinding-resistant HttpClient caching.

Installation

dotnet add package Soenneker.Utils.HttpClientCache.Ssrf

Registration

using Soenneker.Utils.HttpClientCache.Ssrf.Registrars;

services.AddSsrfHttpClientCacheAsSingleton();

AddSsrfHttpClientCacheAsScoped() is also available. Both methods register the underlying Soenneker.Utils.HttpClientCache service with the matching lifetime when it has not already been registered.

Usage

using Soenneker.Utils.HttpClientCache.Ssrf.Abstract;

public sealed class RemoteDocumentClient
{
    private readonly ISsrfHttpClientCache _clientCache;

    public RemoteDocumentClient(ISsrfHttpClientCache clientCache)
    {
        _clientCache = clientCache;
    }

    public async ValueTask<string> Download(Uri uri, CancellationToken cancellationToken)
    {
        HttpClient client = await _clientCache.Get("remote-documents", cancellationToken);
        return await client.GetStringAsync(uri, cancellationToken);
    }
}

The cache implements the same API as IHttpClientCache, including synchronous and asynchronous option factories, cache removal, and disposal.

Security behavior

  • DNS is resolved when a connection is opened.
  • Every resolved address must be publicly routable.
  • The socket connects directly to the validated address set, preventing a second DNS lookup from changing the destination.
  • Redirect destinations pass through the same connection validation.
  • Loopback, private, link-local, carrier-grade NAT, documentation, benchmark, multicast, and reserved address ranges are blocked for IPv4 and IPv6.
  • Proxies, custom HttpClientHandler instances, and custom SslOptions are rejected because they expand or bypass the cache's controlled transport configuration.

The caller owns neither the returned HttpClient nor its handler. Use Remove/RemoveSync when a cached client is no longer needed, or dispose the cache with its dependency-injection scope.

Product Compatible and additional computed target framework versions.
.NET net10.0 is compatible.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last Updated
4.0.2 0 7/27/2026
4.0.1 26 7/27/2026