HTTP Request Smuggling Affecting microsoft.aspnetcore.app.runtime.linux-musl-arm64 package, versions [8.0.0, 8.0.21)[9.0.0, 9.0.10)[10.0.0-rc.1.25451.107, 0.0.0-rc.2.25502.107)


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-DOTNET-MICROSOFTASPNETCOREAPPRUNTIMELINUXMUSLARM64-13551952
  • published15 Oct 2025
  • disclosed14 Oct 2025
  • creditSid

Introduced: 14 Oct 2025

NewCVE-2025-55315  (opens in a new tab)
CWE-444  (opens in a new tab)

How to fix?

Upgrade Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 to version 8.0.21, 9.0.10, 0.0.0-rc.2.25502.107 or higher.

Overview

Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 is a package providing a default set of APIs for building an ASP.NET Core application. Contains assets used for self-contained deployments.

Affected versions of this package are vulnerable to HTTP Request Smuggling via the interpretation of chunked HTTP requests. An attacker can bypass security restrictions and potentially access or manipulate sensitive data by sending specially crafted HTTP requests that exploit inconsistencies in request parsing.

CVSS Base Scores

version 4.0
version 3.1