Moderate severity vulnerability that affects Microsoft.AspNetCore.All, Microsoft.AspNetCore.Server.Kestrel.Core, Microsoft.AspNetCore.Server.Kestrel.Transport.Abstractions, and Microsoft.AspNetCore.Server.Kestrel.Transport.Libuv
Microsoft made an internal discovery of a security vulnerability in version 2.x of ASP.NET Core where a specially crafted request can cause excess resource consumption in Kestrel.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| .NET (NuGet) | Microsoft.AspNetCore.All | >= 2.0.0, < 2.0.8 | 2.0.8 |
| .NET (NuGet) | Microsoft.AspNetCore.Server.Kestrel.Core | >= 2.0.0, < 2.0.3 | 2.0.3 |
| .NET (NuGet) | Microsoft.AspNetCore.Server.Kestrel.Transport.Abstractions | >= 2.0.0, < 2.0.3 | 2.0.3 |
| .NET (NuGet) | Microsoft.AspNetCore.Server.Kestrel.Transport.Libuv | >= 2.0.0, < 2.0.3 | 2.0.3 |
References
- Weakness (CWE)
-- Platform
- .NET (NuGet)
- Package
Microsoft.AspNetCore.All, Microsoft.AspNetCore.Server.Kestrel.Core, Microsoft.AspNetCore.Server.Kestrel.Transport.Abstractions- Disclosed
- 16.10.2018
- Updated
- 11.10.2026 11:23
Sources and licenses
OSV / GitHub Advisory Database - GHSA-3m2r-q8x3-xmf7 - CC BY 4.0
Vulnerability history: Microsoft.AspNetCore.Server.Kestrel.Transport.Abstractions
All published vulnerabilities of this package (.NET (NuGet)), newest first. Shows whether this is a one-off slip or a package that needs watching.
This is the only known vulnerability of this package.
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