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High

Exposure of Sensitive Information in System.Net.Http

  • Disclosed: 14.05.2022
  • Updated: 11.10.2026 11:22

An information disclosure vulnerability exists in .NET Framework and .NET Core which allows bypassing Cross-origin Resource Sharing (CORS) configurations, aka ".NET Framework Information Disclosure Vulnerability." This affects Microsoft .NET Framework 2.0, Microsoft .NET Framework 3.0, Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2, Microsoft .NET Framework 4.5.2, Microsoft .NET Framework 4.6, Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2, Microsoft .NET Framework 4.7/4.7.1/4.7.2, .NET Core 2.1, Microsoft .NET Framework 4.7.1/4.7.2, Microsoft .NET Framework 3.5, Microsoft .NET Framework 3.5.1, Microsoft .NET Framework 4.6/4.6.1/4.6.2, .NET Core 2.2, Microsoft .NET Framework 4.7.2.

Affected software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
.NET (NuGet) Microsoft.NETCore.App >= 2.1.0, < 2.1.7, >= 2.2.0, < 2.2.1 2.1.7, 2.2.1

References

CVSS score 7.5/10
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness (CWE)
CWE-200
Platform
.NET (NuGet)
Package
Microsoft.NETCore.App
Disclosed
14.05.2022
Updated
11.10.2026 11:22

Sources and licenses

OSV / GitHub Advisory Database - GHSA-2xjx-v99w-gqf3 - CC BY 4.0

Vulnerability history: Microsoft.NETCore.App

All published vulnerabilities of this package (.NET (NuGet)), newest first. Shows whether this is a one-off slip or a package that needs watching.

All (10) in the archive
Total entries
10
First → latest
04.2022 10.2022
Without a fix
0
Exploited in attacks
1

Severity breakdown

  • High 6
  • Medium 4

Disclosures per year

Severity:
  1. .NET Framework, SharePoint Server, and Visual Studio Remote Code Execution Vulnerability
    High · 7.8 Exploited in attacks CVE-2020-1147 >= 2.1.0, < 2.1.20 2.1.20
  2. .NET Core & .NET Framework Denial of Service Vulnerability
    High · 7.5 CVE-2020-1108 >= 2.1.0, < 2.1.18 2.1.18
  3. Improper Input Validation in Microsoft.NETCore.App
    High · 7.5 CVE-2017-8585 >= 1.0.0, < 1.0.7, >= 1.1.0, < 1.1.4 1.0.7, 1.1.4
  4. Denial of service in ASP.NET Core
    High · 7.5 CVE-2019-0564 >= 2.2.0, < 2.2.1, >= 2.1.0, < 2.1.7 2.2.1, 2.1.7
  5. Exposure of Sensitive Information in System.Net.Http this entry
    High · 7.5 CVE-2019-0545 >= 2.1.0, < 2.1.7, >= 2.2.0, < 2.2.1 2.1.7, 2.2.1
  6. Improper Certificate Validation
    High · 7.5 CVE-2017-11770 >= 1.0.0, < 2.0.3 2.0.3

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