RHSA-2026:99137: Important: .NET 11.0 security, bug fix, and enhancement update

Published Nov 11, 2026
·
Updated

.NET is a fast, lightweight and modular platform for creating cross platform applications that work on Linux, macOS and Windows. It particularly focuses on creating console applications, web applications and micro-services. .NET contains a runtime conforming to .NET Standards a set of framework libraries, an SDK containing compilers and a 'dotnet' application to drive everything.SDK version: 11.0.100Runtime version: 11.0.0Security Fix(es): dotnet8.0: dotnet11.0: dotnet9.0: dotnet10.0: ASP.NET Core Information Disclosure Vulnerability (CVE-2026-109476) dotnet11.0: dotnet10.0: dotnet9.0: dotnet8.0: .NET Elevation of Privilege Vulnerability (CVE-2026-105544) dotnet8.0: dotnet9.0: dotnet11.0: dotnet10.0: .NET Denial of Service Vulnerability (CVE-2026-109475) dotnet11.0: ASP.NET Core Elevation of Privilege Vulnerability (CVE-2026-109481) dotnet9.0: dotnet11.0: dotnet10.0: dotnet8.0: dotnet: ASP.NET Core Elevation of Privilege Vulnerability (CVE-2026-114146) dotnet11.0: dotnet8.0: dotnet9.0: dotnet10.0: ASP.NET Core Denial of Service Vulnerability (CVE-2026-114147) dotnet11.0: dotnet8.0: dotnet9.0: dotnet10.0: ASP.NET Core Denial of Service Vulnerability (CVE-2026-114149) dotnet11.0: ASP.NET Core Information Disclosure Vulnerability (CVE-2026-114150) dotnet11.0: ASP.NET Core Security Feature Bypass Vulnerability (CVE-2026-114156) dotnet11.0: .NET Security Feature Bypass Vulnerability (CVE-2026-118746) dotnet11.0: ASP.NET Core Denial of Service Vulnerability (CVE-2026-118748) dotnet11.0: ASP.NET Core Denial of Service Vulnerability (CVE-2026-118749) dotnet11.0: .NET Denial of Service Vulnerability (CVE-2026-120796) dotnet10.0: dotnet11.0: .NET Elevation of Privilege Vulnerability (CVE-2026-114155) Bug Fix(es) and Enhancement(s): Update .NET 11.0 to SDK 11.0.100 and Runtime 11.0.0 [rhel-10.3.z] (JIRA:RHEL-302532) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Other sources

Important: .NET 11.0 security, bug fix, and enhancement update

— Red Hat

Affected Software

9 affected componentsFixes available
Red Hat Red Hat Enterprise Linux for ARM 64
Red Hat Red Hat Enterprise Linux for x86_64
Red Hat Red Hat CodeReady Linux Builder for Power, little endian
Red Hat Red Hat CodeReady Linux Builder for x86_64
Red Hat Red Hat CodeReady Linux Builder for IBM z Systems
Red Hat Red Hat CodeReady Linux Builder for ARM 64
Red Hat Red Hat Enterprise Linux for Power, little endian
Red Hat Red Hat Enterprise Linux for IBM z Systems
redhat/dotnet11.0-debugsource<11.0.100-1.el10_3.aa
11.0.100-1.el10_3.aa

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade redhat/dotnet11.0-debugsource to a version that resolves this vulnerability.

    Fixed in 11.0.100-1.el10_3.aa
  2. Upgrade

    Upgrade .NET SDK to a version that resolves this vulnerability.

    Fixed in 11.0.100
  3. Upgrade

    Upgrade .NET Runtime to a version that resolves this vulnerability.

    Fixed in 11.0.0

Event History

Nov 11, 2026
Advisory Published
via Red Hat·12:00 AM
Data Sourced
via Red Hat·12:00 AM
RemedyDescriptionAffected Software
Advisory Published
via Red Hat·06:57 PM
Data Sourced
via Red Hat·06:57 PM
Severity

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