Issued at: 2026-11-13
Updated at: 2026-11-14
Advisory content derived from Red Hat RHSA-2026:99051, © Red Hat, Inc., used under CC BY 4.0, with modifications.
Synopsis
Important: .NET 9.0 security, bug fix, and enhancement update
Description
.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: 9.0.124
Runtime version: 9.0.23
Security 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)
* 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)
Bug Fix(es) and Enhancement(s):
* Update .NET 9.0 to SDK 9.0.124 and Runtime 9.0.23 (JIRA:Rocky Linux-302540)
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.