RHSA-2026:98627: Important: .NET 11.0 security, bug fix, and enhancement update
.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: 11.0.100~rc.3.26522.148Runtime version: 11.0.0~rc.3.26522.148Security Fix(es): dotnet8.0: dotnet9.0: dotnet11.0: dotnet10.0: ASP.NET Core Elevation of Privilege Vulnerability (CVE-2026-114148) Bug Fix(es) and Enhancement(s): Update .NET 11 to RC 3 [rhel-10.3.z] (JIRA:RHEL-293373) 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.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
.NET SDKto a version that resolves this vulnerability.Fixed in 11.0.100~rc.3.26522.148 - Upgrade
Upgrade
.NET Runtimeto a version that resolves this vulnerability.Fixed in 11.0.0~rc.3.26522.148
Event History
Frequently Asked Questions
Which .NET components are covered by this update?
The advisory updates the .NET 11 SDK to version 11.0.100~rc.3.26522.148 and the runtime to version 11.0.0~rc.3.26522.148. It also identifies the ASP.NET Core elevation-of-privilege issue as affecting dotnet8.0, dotnet9.0, dotnet10.0, and dotnet11.0.
What should organizations do if they run ASP.NET Core workloads?
Apply the advisory update to obtain the listed .NET 11 SDK and runtime versions. The provided information does not describe a workaround or mitigation for systems that cannot be updated immediately.