RLSA-2026:67528

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: 9.0.121

Runtime version: 9.0.20

Security Fix(es):

* dotnet10.0: dotnet9.0: dotnet8.0: .NET Information Disclosure Vulnerability (CVE-2026-58649)

* dotnet10.0: dotnet9.0: .NET Elevation of Privilege Vulnerability (CVE-2026-69806)

Bug Fix(es) and Enhancement(s):

* Update .NET 9.0 to SDK 9.0.121 and Runtime 9.0.20 [rhel-10.2.z] (JIRA:Rocky Linux-252279)

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 products

Rocky Linux 10 aarch64 Rocky Linux 10 ppc64le Rocky Linux 10 riscv64 Rocky Linux 10 s390x Rocky Linux 10 x86_64

Fixes

2528870 2528921

CVEs

CVE-2026-58649 CVE-2026-69806

Affected packages

Rocky Linux 10 aarch64 - AppStream

dotnet-sdk-aot-9.0-0:9.0.121-1.el10_2.aarch64.rpm netstandard-targeting-pack-2.1-0:9.0.121-1.el10_2.aarch64.rpm dotnet-targeting-pack-9.0-0:9.0.20-1.el10_2.aarch64.rpm dotnet-templates-9.0-0:9.0.121-1.el10_2.aarch64.rpm aspnetcore-targeting-pack-9.0-0:9.0.20-1.el10_2.aarch64.rpm dotnet-hostfxr-9.0-0:9.0.20-1.el10_2.aarch64.rpm dotnet-sdk-9.0-0:9.0.121-1.el10_2.aarch64.rpm dotnet9.0-0:9.0.121-1.el10_2.src.rpm aspnetcore-runtime-9.0-0:9.0.20-1.el10_2.aarch64.rpm dotnet9.0-debugsource-0:9.0.121-1.el10_2.aarch64.rpm dotnet-sdk-9.0-debuginfo-0:9.0.121-1.el10_2.aarch64.rpm dotnet-runtime-dbg-9.0-0:9.0.20-1.el10_2.aarch64.rpm dotnet-runtime-9.0-0:9.0.20-1.el10_2.aarch64.rpm dotnet-sdk-dbg-9.0-0:9.0.121-1.el10_2.aarch64.rpm dotnet-apphost-pack-9.0-0:9.0.20-1.el10_2.aarch64.rpm dotnet-apphost-pack-9.0-debuginfo-0:9.0.20-1.el10_2.aarch64.rpm aspnetcore-runtime-dbg-9.0-0:9.0.20-1.el10_2.aarch64.rpm dotnet-runtime-9.0-debuginfo-0:9.0.20-1.el10_2.aarch64.rpm dotnet-sdk-aot-9.0-debuginfo-0:9.0.121-1.el10_2.aarch64.rpm dotnet-hostfxr-9.0-debuginfo-0:9.0.20-1.el10_2.aarch64.rpm

Rocky Linux 10 s390x - AppStream

aspnetcore-targeting-pack-9.0-0:9.0.20-1.el10_2.s390x.rpm dotnet9.0-debugsource-0:9.0.121-1.el10_2.s390x.rpm dotnet-templates-9.0-0:9.0.121-1.el10_2.s390x.rpm netstandard-targeting-pack-2.1-0:9.0.121-1.el10_2.s390x.rpm dotnet-runtime-9.0-debuginfo-0:9.0.20-1.el10_2.s390x.rpm dotnet-apphost-pack-9.0-0:9.0.20-1.el10_2.s390x.rpm dotnet-hostfxr-9.0-debuginfo-0:9.0.20-1.el10_2.s390x.rpm dotnet9.0-0:9.0.121-1.el10_2.src.rpm dotnet-apphost-pack-9.0-debuginfo-0:9.0.20-1.el10_2.s390x.rpm dotnet-targeting-pack-9.0-0:9.0.20-1.el10_2.s390x.rpm aspnetcore-runtime-9.0-0:9.0.20-1.el10_2.s390x.rpm dotnet-hostfxr-9.0-0:9.0.20-1.el10_2.s390x.rpm aspnetcore-runtime-dbg-9.0-0:9.0.20-1.el10_2.s390x.rpm dotnet-sdk-dbg-9.0-0:9.0.121-1.el10_2.s390x.rpm dotnet-sdk-9.0-0:9.0.121-1.el10_2.s390x.rpm dotnet-sdk-9.0-debuginfo-0:9.0.121-1.el10_2.s390x.rpm dotnet-runtime-9.0-0:9.0.20-1.el10_2.s390x.rpm dotnet-runtime-dbg-9.0-0:9.0.20-1.el10_2.s390x.rpm

Rocky Linux 10 x86_64 - AppStream

dotnet-hostfxr-9.0-0:9.0.20-1.el10_2.x86_64.rpm aspnetcore-targeting-pack-9.0-0:9.0.20-1.el10_2.x86_64.rpm dotnet-templates-9.0-0:9.0.121-1.el10_2.x86_64.rpm dotnet-sdk-9.0-0:9.0.121-1.el10_2.x86_64.rpm dotnet-sdk-dbg-9.0-0:9.0.121-1.el10_2.x86_64.rpm dotnet-sdk-9.0-debuginfo-0:9.0.121-1.el10_2.x86_64.rpm dotnet-apphost-pack-9.0-debuginfo-0:9.0.20-1.el10_2.x86_64.rpm dotnet9.0-debugsource-0:9.0.121-1.el10_2.x86_64.rpm netstandard-targeting-pack-2.1-0:9.0.121-1.el10_2.x86_64.rpm aspnetcore-runtime-9.0-0:9.0.20-1.el10_2.x86_64.rpm dotnet-targeting-pack-9.0-0:9.0.20-1.el10_2.x86_64.rpm dotnet-apphost-pack-9.0-0:9.0.20-1.el10_2.x86_64.rpm dotnet9.0-0:9.0.121-1.el10_2.src.rpm dotnet-sdk-aot-9.0-0:9.0.121-1.el10_2.x86_64.rpm dotnet-runtime-9.0-0:9.0.20-1.el10_2.x86_64.rpm dotnet-sdk-aot-9.0-debuginfo-0:9.0.121-1.el10_2.x86_64.rpm aspnetcore-runtime-dbg-9.0-0:9.0.20-1.el10_2.x86_64.rpm dotnet-runtime-dbg-9.0-0:9.0.20-1.el10_2.x86_64.rpm dotnet-runtime-9.0-debuginfo-0:9.0.20-1.el10_2.x86_64.rpm dotnet-hostfxr-9.0-debuginfo-0:9.0.20-1.el10_2.x86_64.rpm

Rocky Linux 10 ppc64le - CRB

dotnet-sdk-9.0-source-built-artifacts-0:9.0.121-1.el10_2.ppc64le.rpm

Rocky Linux 10 ppc64le - AppStream

dotnet-runtime-9.0-0:9.0.20-1.el10_2.ppc64le.rpm dotnet-hostfxr-9.0-debuginfo-0:9.0.20-1.el10_2.ppc64le.rpm dotnet-sdk-9.0-debuginfo-0:9.0.121-1.el10_2.ppc64le.rpm aspnetcore-runtime-9.0-0:9.0.20-1.el10_2.ppc64le.rpm dotnet-templates-9.0-0:9.0.121-1.el10_2.ppc64le.rpm dotnet9.0-0:9.0.121-1.el10_2.src.rpm dotnet-runtime-9.0-debuginfo-0:9.0.20-1.el10_2.ppc64le.rpm dotnet-targeting-pack-9.0-0:9.0.20-1.el10_2.ppc64le.rpm dotnet-runtime-dbg-9.0-0:9.0.20-1.el10_2.ppc64le.rpm aspnetcore-targeting-pack-9.0-0:9.0.20-1.el10_2.ppc64le.rpm dotnet-apphost-pack-9.0-0:9.0.20-1.el10_2.ppc64le.rpm dotnet-apphost-pack-9.0-debuginfo-0:9.0.20-1.el10_2.ppc64le.rpm dotnet9.0-debugsource-0:9.0.121-1.el10_2.ppc64le.rpm aspnetcore-runtime-dbg-9.0-0:9.0.20-1.el10_2.ppc64le.rpm netstandard-targeting-pack-2.1-0:9.0.121-1.el10_2.ppc64le.rpm dotnet-hostfxr-9.0-0:9.0.20-1.el10_2.ppc64le.rpm dotnet-sdk-9.0-0:9.0.121-1.el10_2.ppc64le.rpm dotnet-sdk-dbg-9.0-0:9.0.121-1.el10_2.ppc64le.rpm

Rocky Linux 10 aarch64 - CRB

dotnet-sdk-9.0-source-built-artifacts-0:9.0.121-1.el10_2.aarch64.rpm

Rocky Linux 10 riscv64 - AppStream

dotnet9.0-0:9.0.121-1.el10_2.src.rpm

Rocky Linux 10 x86_64 - CRB

dotnet-sdk-9.0-source-built-artifacts-0:9.0.121-1.el10_2.x86_64.rpm

Rocky Linux 10 s390x - CRB

dotnet-sdk-9.0-source-built-artifacts-0:9.0.121-1.el10_2.s390x.rpm