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CVE-2026-42899GHSA-9V76-4QCC-FRGHBIT-DOTNET-2026-42899BIT-DOTNET-SDK-2026-42899

ASP.NET Core Denial of Service Vulnerability

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 10.0.8, 8.0.27, 9.0.16
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: yes
  • Technical impact: partial

Summary

Loop with unreachable exit condition ('infinite loop') in ASP.NET Core allows an unauthorized attacker to deny service over a network.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: yes · Technical impact: partial

  3. Record last updated

Affected versions

  • Microsoft .NET 10.0

    From 10.0.0 · fixed in 10.0.8

  • Microsoft .NET 8.0

    From 8.0.0 · fixed in 8.0.27

  • Microsoft .NET 9.0

    From 9.0.0 · fixed in 9.0.16

  • Microsoft.AspNetCore.App.Runtime.win-armNuGet

    From 8.0.0 · fixed in 8.0.27

  • Microsoft.AspNetCore.App.Runtime.win-arm64NuGet

    From 8.0.0 · fixed in 8.0.27

  • Microsoft.AspNetCore.App.Runtime.win-x64NuGet

    From 8.0.0 · fixed in 8.0.27

  • Microsoft.AspNetCore.App.Runtime.win-x86NuGet

    From 8.0.0 · fixed in 8.0.27

  • Microsoft.AspNetCore.App.Runtime.linux-armNuGet

    From 8.0.0 · fixed in 8.0.27

  • Microsoft.AspNetCore.App.Runtime.linux-arm64NuGet

    From 8.0.0 · fixed in 8.0.27

  • Microsoft.AspNetCore.App.Runtime.linux-musl-armNuGet

    From 8.0.0 · fixed in 8.0.27

  • Microsoft.AspNetCore.App.Runtime.linux-musl-arm64NuGet

    From 8.0.0 · fixed in 8.0.27

  • Microsoft.AspNetCore.App.Runtime.linux-musl-x64NuGet

    From 8.0.0 · fixed in 8.0.27

  • Microsoft.AspNetCore.App.Runtime.linux-x64NuGet

    From 8.0.0 · fixed in 8.0.27

  • Microsoft.AspNetCore.App.Runtime.osx-arm64NuGet

    From 8.0.0 · fixed in 8.0.27

  • Microsoft.AspNetCore.App.Runtime.osx-x64NuGet

    From 8.0.0 · fixed in 8.0.27

  • Microsoft.AspNetCore.App.Runtime.win-armNuGet

    From 9.0.0 · fixed in 9.0.16

  • Microsoft.AspNetCore.App.Runtime.win-armNuGet

    From 10.0.0 · fixed in 10.0.8

  • Microsoft.AspNetCore.App.Runtime.win-arm64NuGet

    From 9.0.0 · fixed in 9.0.16

  • Microsoft.AspNetCore.App.Runtime.win-arm64NuGet

    From 10.0.0 · fixed in 10.0.8

  • Microsoft.AspNetCore.App.Runtime.win-x64NuGet

    From 9.0.0 · fixed in 9.0.16

  • Microsoft.AspNetCore.App.Runtime.win-x64NuGet

    From 10.0.0 · fixed in 10.0.8

  • Microsoft.AspNetCore.App.Runtime.win-x86NuGet

    From 9.0.0 · fixed in 9.0.16

  • Microsoft.AspNetCore.App.Runtime.win-x86NuGet

    From 10.0.0 · fixed in 10.0.8

  • Microsoft.AspNetCore.App.Runtime.linux-armNuGet

    From 9.0.0 · fixed in 9.0.16

  • Microsoft.AspNetCore.App.Runtime.linux-armNuGet

    From 10.0.0 · fixed in 10.0.8

  • Microsoft.AspNetCore.App.Runtime.linux-arm64NuGet

    From 9.0.0 · fixed in 9.0.16

  • Microsoft.AspNetCore.App.Runtime.linux-arm64NuGet

    From 10.0.0 · fixed in 10.0.8

  • Microsoft.AspNetCore.App.Runtime.linux-musl-armNuGet

    From 9.0.0 · fixed in 9.0.16

  • Microsoft.AspNetCore.App.Runtime.linux-musl-armNuGet

    From 10.0.0 · fixed in 10.0.8

  • Microsoft.AspNetCore.App.Runtime.linux-musl-arm64NuGet

    From 9.0.0 · fixed in 9.0.16

  • Microsoft.AspNetCore.App.Runtime.linux-musl-arm64NuGet

    From 10.0.0 · fixed in 10.0.8

  • Microsoft.AspNetCore.App.Runtime.linux-musl-x64NuGet

    From 10.0.0 · fixed in 10.0.8

  • Microsoft.AspNetCore.App.Runtime.linux-musl-x64NuGet

    From 9.0.0 · fixed in 9.0.16

  • Microsoft.AspNetCore.App.Runtime.linux-x64NuGet

    From 9.0.0 · fixed in 9.0.16

  • Microsoft.AspNetCore.App.Runtime.linux-x64NuGet

    From 10.0.0 · fixed in 10.0.8

  • Microsoft.AspNetCore.App.Runtime.osx-arm64NuGet

    From 9.0.0 · fixed in 9.0.16

  • Microsoft.AspNetCore.App.Runtime.osx-arm64NuGet

    From 10.0.0 · fixed in 10.0.8

  • Microsoft.AspNetCore.App.Runtime.osx-x64NuGet

    From 9.0.0 · fixed in 9.0.16

  • Microsoft.AspNetCore.App.Runtime.osx-x64NuGet

    From 10.0.0 · fixed in 10.0.8

References 1

msrc.microsoft.com