Sign in
Deutsch English Español Polski
High

.NET Core Information Disclosure

  • Disclosed: 21.04.2021
  • Updated: 11.10.2026 11:22

An information disclosure vulnerability exists in .NET Core when authentication information is inadvertently exposed in a redirect, aka ".NET Core Information Disclosure Vulnerability." This affects .NET Core 2.1, .NET Core 1.0, .NET Core 1.1, PowerShell Core 6.0.

Affected software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
.NET (NuGet) System.Net.Http < 4.3.4 4.3.4

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
System.Net.Http
Disclosed
21.04.2021
Updated
11.10.2026 11:22

Sources and licenses

OSV / GitHub Advisory Database - GHSA-7jgj-8wvc-jh57 - CC BY 4.0

Vulnerability history: System.Net.Http

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
5
First → latest
10.2018 04.2021
Without a fix
0
Exploited in attacks
0

Severity breakdown

  • High 3
  • Medium 2

Disclosures per year

  1. .NET Core Information Disclosure this entry
    High · 7.5 CVE-2018-8292 < 4.3.4 4.3.4
  2. Moderate severity vulnerability that affects Microsoft.AspNetCore.Mvc and Microsoft.AspNetCore.Mvc.Core
    Medium CVE-2017-0248 >= 4.1.1, < 4.1.2, >= 4.3.1, < 4.3.2 4.1.2, 4.3.2
  3. ASP.NET Core fails to properly validate web requests
    High · 7.5 CVE-2017-0247 >= 4.1.1, < 4.1.2, >= 4.3.1, < 4.3.2 4.1.2, 4.3.2
  4. Moderate severity vulnerability that affects Microsoft.AspNetCore.Mvc
    Medium · 5.3 CVE-2017-0256 >= 4.1.1, < 4.1.2, >= 4.3.1, < 4.3.2 4.1.2, 4.3.2
  5. High severity vulnerability that affects Microsoft.AspNetCore.Mvc
    High · 7.3 CVE-2017-0249 >= 4.1.1, < 4.1.2, >= 4.3.1, < 4.3.2 4.1.2, 4.3.2

Know which vulnerabilities affect your application

With the DockRay integration and software inventory enabled, DockRay checks reported component versions against known vulnerabilities and notifies you about confirmed matches. Coverage depends on the supported technology and available advisory data.

Connect your application
DockRay newsletter

Application security in your inbox

Important vulnerabilities, actionable guidance and practical advice for your applications. Choose your technologies and follow what matters to your project.

  • A daily digest of new vulnerabilities, critical ones included.
  • Notifications about important updates.
  • Practical advice on application security and monitoring.

Leave empty to receive updates for every technology.

Privacy policy

Free to subscribe. Unsubscribe with one click in any email.