CyberICT

CVE-2026-70188

Microsoft · Published October 13, 2026

CVSS v3.1

CRITICAL
Patch availableGet patch

Description

ASP.NET Core Security Feature Bypass Vulnerability. Inconsistent interpretation of http requests ('http request/response smuggling') in ASP.NET Core allows an unauthorized attacker to bypass a security feature over a network.

Affected Products

  • Microsoft Visual Studio 2026 version 18.10
  • Microsoft Visual Studio 2022 version 17.14
  • ASP.NET Core 11.0
  • ASP.NET Core 9.0

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C