Infinite loop Affecting microsoft.aspnetcore.app.runtime.linux-x64 package, versions [8.0.0,8.0.27)[9.0.0,9.0.16)[10.0.0,10.0.8)
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-MICROSOFTASPNETCOREAPPRUNTIMELINUXX64-16874054
- published25 May 2026
- disclosed18 May 2026
- creditMuhammad Abdul Rehman
Introduced: 18 May 2026
NewCVE-2026-42899 (opens in a new tab)How to fix?
Upgrade Microsoft.AspNetCore.App.Runtime.linux-x64 to version 8.0.27, 9.0.16, 10.0.8 or higher.
Overview
Microsoft.AspNetCore.App.Runtime.linux-x64 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 Infinite loop in the FormDataReader.ProcessFormKeys() function when a form key contains an opening [ without a matching ]. An attacker can cause the application to become unresponsive by sending specially crafted network requests that trigger an infinite loop.