Moderate severity vulnerability that affects Microsoft.AspNetCore.Mvc and Microsoft.AspNetCore.Mvc.Core
Microsoft .NET Framework 2.0, 3.5, 3.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2 and 4.7 allow an attacker to bypass Enhanced Security Usage taggings when they present a certificate that is invalid for a specific use, aka ".NET Security Feature Bypass Vulnerability."
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| .NET (NuGet) | Microsoft.AspNetCore.Mvc | >= 1.0.0, < 1.0.4, >= 1.1.0, < 1.1.3 | 1.0.4, 1.1.3 |
| .NET (NuGet) | Microsoft.AspNetCore.Mvc.Abstractions | >= 1.0.0, < 1.0.4, >= 1.1.0, < 1.1.3 | 1.0.4, 1.1.3 |
| .NET (NuGet) | Microsoft.AspNetCore.Mvc.ApiExplorer | >= 1.0.0, < 1.0.4, >= 1.1.0, < 1.1.3 | 1.0.4, 1.1.3 |
| .NET (NuGet) | Microsoft.AspNetCore.Mvc.Core | >= 1.0.0, < 1.0.4, >= 1.1.0, < 1.1.3 | 1.0.4, 1.1.3 |
| .NET (NuGet) | Microsoft.AspNetCore.Mvc.Cors | >= 1.0.0, < 1.0.4, >= 1.1.0, < 1.1.3 | 1.0.4, 1.1.3 |
| .NET (NuGet) | Microsoft.AspNetCore.Mvc.DataAnnotations | >= 1.0.0, < 1.0.4, >= 1.1.0, < 1.1.3 | 1.0.4, 1.1.3 |
| .NET (NuGet) | Microsoft.AspNetCore.Mvc.Formatters.Json | >= 1.0.0, < 1.0.4, >= 1.1.0, < 1.1.3 | 1.0.4, 1.1.3 |
| .NET (NuGet) | Microsoft.AspNetCore.Mvc.Formatters.Xml | >= 1.0.0, < 1.0.4, >= 1.1.0, < 1.1.3 | 1.0.4, 1.1.3 |
| .NET (NuGet) | Microsoft.AspNetCore.Mvc.Localization | >= 1.0.0, < 1.0.4, >= 1.1.0, < 1.1.3 | 1.0.4, 1.1.3 |
| .NET (NuGet) | Microsoft.AspNetCore.Mvc.Razor | >= 1.0.0, < 1.0.4, >= 1.1.0, < 1.1.3 | 1.0.4, 1.1.3 |
| .NET (NuGet) | Microsoft.AspNetCore.Mvc.Razor.Host | >= 1.0.0, < 1.0.4, >= 1.1.0, < 1.1.3 | 1.0.4, 1.1.3 |
| .NET (NuGet) | Microsoft.AspNetCore.Mvc.TagHelpers | >= 1.0.0, < 1.0.4, >= 1.1.0, < 1.1.3 | 1.0.4, 1.1.3 |
| .NET (NuGet) | Microsoft.AspNetCore.Mvc.ViewFeatures | >= 1.0.0, < 1.0.4, >= 1.1.0, < 1.1.3 | 1.0.4, 1.1.3 |
| .NET (NuGet) | Microsoft.AspNetCore.Mvc.WebApiCompatShim | >= 1.0.0, < 1.0.4, >= 1.1.0, < 1.1.3 | 1.0.4, 1.1.3 |
| .NET (NuGet) | System.Net.Http | >= 4.1.1, < 4.1.2, >= 4.3.1, < 4.3.2 | 4.1.2, 4.3.2 |
| .NET (NuGet) | System.Net.Http.WinHttpHandler | >= 4.0.0, < 4.0.1, >= 4.3.0, < 4.3.1 | 4.0.1, 4.3.1 |
| .NET (NuGet) | System.Net.Security | >= 4.0.0, < 4.0.1, >= 4.3.0, < 4.3.1 | 4.0.1, 4.3.1 |
| .NET (NuGet) | System.Net.WebSockets.Client | >= 4.0.0, < 4.0.1, >= 4.3.0, < 4.3.1 | 4.0.1, 4.3.1 |
| .NET (NuGet) | System.Text.Encodings.Web | >= 4.0.0, < 4.0.1, >= 4.3.0, < 4.3.1 | 4.0.1, 4.3.1 |
References
- Weakness (CWE)
CWE-295- Platform
- .NET (NuGet)
- Package
Microsoft.AspNetCore.Mvc, Microsoft.AspNetCore.Mvc.Abstractions, Microsoft.AspNetCore.Mvc.ApiExplorer- Disclosed
- 16.10.2018
- Updated
- 11.10.2026 11:23
Sources and licenses
OSV / GitHub Advisory Database - GHSA-ch6p-4jcm-h8vh - CC BY 4.0
Vulnerability history: Microsoft.AspNetCore.Mvc.Core
All published vulnerabilities of this package (.NET (NuGet)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 6
- First → latest
- 10.2018 05.2022
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 4
- Medium 2
Disclosures per year
- 2018: 4
- 2019: 0
- 2020: 0
- 2021: 0
- 2022: 2
- 2023: 0
- 2024: 0
- 2025: 0
- 2026: 0
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Moderate severity vulnerability that affects Microsoft.AspNetCore.Mvc and Microsoft.AspNetCore.Mvc.Core this entry
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