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TI-2019-00805 Aliases CVE-2019-1075GHSA-prrf-397v-83xh

Open redirect in Microsoft ASP.NET Core

Priority LOW 32CWE-601Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Spoofing
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA and GitHub. Impact type from CWE-601.

Summary

A spoofing vulnerability exists in ASP.NET Core that could lead to an open redirect, aka 'ASP.NET Core Spoofing Vulnerability'.

Why it matters now

EPSS 0.02644 85th percentileScored 2026-11-07
Fix Fixed Microsoft.AspNetCore.App (NuGet): 2.2.6, 2.1.12Microsoft.AspNetCore.All (NuGet): 2.2.6, 2.1.12+2 more products

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
MicrosoftASP.NET Core2.1; 2.2—No fix listedCNA
—Microsoft.AspNetCore.App (NuGet)2.2.0 to before 2.2.62.2.6Patch availableGHSA-prrf-397v-83xh
—Microsoft.AspNetCore.App (NuGet)2.1.0 to before 2.1.122.1.12Patch availableGHSA-prrf-397v-83xh
—Microsoft.AspNetCore.All (NuGet)2.2.0 to before 2.2.62.2.6Patch availableGHSA-prrf-397v-83xh
—Microsoft.AspNetCore.All (NuGet)2.1.0 to before 2.1.122.1.12Patch availableGHSA-prrf-397v-83xh
—Microsoft.AspNetCore.Server.IIS (NuGet)2.2.0 to before 2.2.62.2.6Patch availableGHSA-prrf-397v-83xh
—Microsoft.AspNetCore.Server.HttpSys (NuGet)2.2.0 to before 2.2.62.2.6Patch availableGHSA-prrf-397v-83xh
—Microsoft.AspNetCore.Server.HttpSys (NuGet)2.1.0 to before 2.1.122.1.12Patch availableGHSA-prrf-397v-83xh
  • ASP.NET Core VendorMicrosoft Affected 2.1; 2.2 Fixed in — No fix listed CNA
  • Microsoft.AspNetCore.App (NuGet) Vendor— Affected 2.2.0 to before 2.2.6 Fixed in 2.2.6 Patch available GHSA-prrf-397v-83xh
  • Microsoft.AspNetCore.App (NuGet) Vendor— Affected 2.1.0 to before 2.1.12 Fixed in 2.1.12 Patch available GHSA-prrf-397v-83xh
  • Microsoft.AspNetCore.All (NuGet) Vendor— Affected 2.2.0 to before 2.2.6 Fixed in 2.2.6 Patch available GHSA-prrf-397v-83xh
  • Microsoft.AspNetCore.All (NuGet) Vendor— Affected 2.1.0 to before 2.1.12 Fixed in 2.1.12 Patch available GHSA-prrf-397v-83xh
  • Microsoft.AspNetCore.Server.IIS (NuGet) Vendor— Affected 2.2.0 to before 2.2.6 Fixed in 2.2.6 Patch available GHSA-prrf-397v-83xh
  • Microsoft.AspNetCore.Server.HttpSys (NuGet) Vendor— Affected 2.2.0 to before 2.2.6 Fixed in 2.2.6 Patch available GHSA-prrf-397v-83xh
  • Microsoft.AspNetCore.Server.HttpSys (NuGet) Vendor— Affected 2.1.0 to before 2.1.12 Fixed in 2.1.12 Patch available GHSA-prrf-397v-83xh

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:asp.net_core:2.1:*:*:*:*:*:*:*2.1VulnerableMicrosoft
cpe:2.3:a:microsoft:asp.net_core:2.2:*:*:*:*:*:*:*2.2VulnerableMicrosoft
  • cpe:2.3:a:microsoft:asp.net_core:2.1:*:*:*:*:*:*:* Versions 2.1 Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:asp.net_core:2.2:*:*:*:*:*:*:* Versions 2.2 Vulnerable ·Microsoft

Remediation

  • Fix · GHSA-prrf-397v-83xh Microsoft.AspNetCore.App (NuGet) Fixed in 2.2.6 Advisory →
  • Fix · GHSA-prrf-397v-83xh Microsoft.AspNetCore.App (NuGet) Fixed in 2.1.12 Advisory →
  • Fix · GHSA-prrf-397v-83xh Microsoft.AspNetCore.All (NuGet) Fixed in 2.2.6 Advisory →
  • Fix · GHSA-prrf-397v-83xh Microsoft.AspNetCore.All (NuGet) Fixed in 2.1.12 Advisory →
  • Fix · GHSA-prrf-397v-83xh Microsoft.AspNetCore.Server.IIS (NuGet) Fixed in 2.2.6 Advisory →
  • Fix · GHSA-prrf-397v-83xh Microsoft.AspNetCore.Server.HttpSys (NuGet) Fixed in 2.2.6 Advisory →
  • Fix · GHSA-prrf-397v-83xh Microsoft.AspNetCore.Server.HttpSys (NuGet) Fixed in 2.1.12 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-1075
  2. 2026-10-03 Alias added: GHSA-prrf-397v-83xh

References

Patch 1

Advisory 1

Other 2

  • TI-2023-23979 The HTTP/2 protocol allows a denial of service (server resource consumption) because… KEVCVSS 3.1HIGH 7.5
  • TI-2023-19596 .NET and Visual Studio Denial of Service Vulnerability KEVCVSS 3.1HIGH 7.5
  • TI-2025-34970 ASP.NET Security Feature Bypass Vulnerability CVSS 3.1CRITICAL 9.9
  • TI-2024-14164 .NET Denial of Service Vulnerability CVSS 3.1HIGH 7.5
  • TI-2023-18092 ASP.NET Core Denial of Service Vulnerability CVSS 3.1HIGH 8.2
  • TI-2023-18392 ASP.NET Core Security Feature Bypass Vulnerability CVSS 3.1MEDIUM 6.2
See all 40 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences