Deadlock Affecting microsoft.aspnetcore.app.runtime.linux-musl-arm package, versions [8.0.0,8.0.32)[9.0.0,9.0.21)[10.0.0,10.0.13)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DOTNET-MICROSOFTASPNETCOREAPPRUNTIMELINUXMUSLARM-20932743
- published14 Oct 2026
- disclosed13 Oct 2026
- creditKevin Gosse, Muhammad Abdul Rehman
Introduced: 13 Oct 2026
NewCVE-2026-70186 (opens in a new tab)How to fix?
Upgrade Microsoft.AspNetCore.App.Runtime.linux-musl-arm to version 8.0.32, 9.0.21, 10.0.13 or higher.
Overview
Microsoft.AspNetCore.App.Runtime.linux-musl-arm 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 Deadlock via the Kestrel connection handling process. An attacker can cause the server to become unresponsive and exhaust system resources by sending crafted HTTP/3 reset or abort sequences that trigger excessive blocked-thread creation.