Improper input validation in ASP.NET Core allows an unauthorized attacker to bypass a security feature over a network.

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Vendors Products
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.net 11.0 Installed On Linux Subscribe
.net 11.0 Installed On Mac Os Subscribe
.net 11.0 Installed On Windows Subscribe
Microsoft Visual Studio 2026 Version 18.12 Subscribe
Advisories
Source ID Title
Github GHSA Github GHSA GHSA-8w29-6cjc-h6w4 Microsoft Security Advisory CVE-2026-114156 - ASP.NET Core Security Feature Bypass Vulnerability
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Wed, 11 Nov 2026 00:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-20
References
Metrics threat_severity

None

threat_severity

Important


Tue, 10 Nov 2026 18:30:00 +0000

Type Values Removed Values Added
Description Improper input validation in ASP.NET Core allows an unauthorized attacker to bypass a security feature over a network.
Title ASP.NET Core Security Feature Bypass Vulnerability
First Time appeared Microsoft
Microsoft .net 11.0 Installed On Linux
Microsoft .net 11.0 Installed On Mac Os
Microsoft .net 11.0 Installed On Windows
Microsoft microsoft Visual Studio 2026 Version 18.12
Weaknesses CWE-41
CPEs cpe:2.3:a:microsoft:.net_11.0_installed_on_linux:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net_11.0_installed_on_mac_os:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net_11.0_installed_on_windows:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:microsoft_visual_studio_2026_version_18.12:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft .net 11.0 Installed On Linux
Microsoft .net 11.0 Installed On Mac Os
Microsoft .net 11.0 Installed On Windows
Microsoft microsoft Visual Studio 2026 Version 18.12
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N/E:U/RL:O/RC:C'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-11-11T17:14:37.437Z

Reserved: 2026-10-20T21:56:39.317Z

Link: CVE-2026-114156

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-11-10T19:19:08.937

Modified: 2026-11-10T20:18:01.850

Link: CVE-2026-114156

cve-icon Redhat

Severity : Important

Publid Date: 2026-11-10T17:00:00Z

Links: CVE-2026-114156 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-11-11T19:30:09Z

Weaknesses