HTTP Request Smuggling 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)[11.0.0-preview.1,11.0.0-rc.2)
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-20936581
- published14 Oct 2026
- disclosed13 Oct 2026
- creditAayush Atharva
Introduced: 13 Oct 2026
NewCVE-2026-70188 (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, 11.0.0-rc.2 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 HTTP Request Smuggling in the HTTP/2 request processing when newline characters in request trailers and values from the dynamic HPACK table are accepted instead of being treated as malformed. An attacker can bypass security controls and potentially smuggle HTTP requests by crafting specially formatted HTTP/2 requests.