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RLSA-2026:86168

Security Mirrored from RHSA-2026:86168
Issued at: 2026-10-22
Updated at: 2026-10-22

Advisory content derived from Red Hat RHSA-2026:86168, © Red Hat, Inc., used under CC BY 4.0, with modifications.

Synopsis

Critical: .NET 8.0 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: 8.0.132

Runtime version: 8.0.32

Security Fix(es):

* dotnet10.0: dotnet9.0: dotnet: dotnet8.0: .NET Denial of Service Vulnerability (CVE-2026-58280)

* dotnet10.0: dotnet8.0: dotnet9.0: dotnet: .NET Information Disclosure Vulnerability (CVE-2026-66822)

* dotnet9.0: dotnet: dotnet10.0: dotnet8.0: .NET Denial of Service Vulnerability (CVE-2026-69651)

* dotnet8.0: dotnet10.0: dotnet: dotnet9.0: ASP.NET Core Denial of Service Vulnerability (CVE-2026-70159)

* dotnet10.0: dotnet8.0: dotnet9.0: ASP.NET Core Elevation of Privilege Vulnerability (CVE-2026-70175)

* dotnet10.0: dotnet8.0: dotnet9.0: ASP.NET Core Elevation of Privilege Vulnerability (CVE-2026-70179)

* dotnet9.0: dotnet8.0: dotnet10.0: ASP.NET Core Denial of Service Vulnerability (CVE-2026-70181)

* dotnet: dotnet10.0: dotnet9.0: dotnet8.0: ASP.NET Core Elevation of Privilege Vulnerability (CVE-2026-70183)

* dotnet10.0: dotnet9.0: dotnet8.0: ASP.NET Core Denial of Service Vulnerability (CVE-2026-70186)

* dotnet: ASP.NET Core Security Feature Bypass Vulnerability (CVE-2026-70188)

* dotnet9.0: dotnet8.0: dotnet10.0: ASP.NET Core Denial of Service Vulnerability (CVE-2026-70196)

* dotnet: ASP.NET Core Tampering Vulnerability (CVE-2026-88092)

* dotnet10.0: dotnet8.0: dotnet9.0: dotnet: MessagePack: Nested arrays can blow past buffer length limits (CVE-2026-92707)

* dotnet8.0: Active Directory Federation Services (AD FS) Spoofing Vulnerability (CVE-2026-96222)

* dotnet: dotnet8.0: dotnet9.0: dotnet10.0: .NET Elevation of Privilege Vulnerability (CVE-2026-96225)

* dotnet9.0: dotnet10.0: dotnet8.0: dotnet: ASP.NET Core Remote Code Execution Vulnerability (CVE-2026-96230)

* dotnet: dotnet9.0: dotnet10.0: dotnet8.0: .NET Elevation of Privilege Vulnerability (CVE-2026-96231)

* dotnet10.0: dotnet: dotnet8.0: dotnet9.0: ASP.NET Core Denial of Service Vulnerability (CVE-2026-96233)

* dotnet: dotnet10.0: dotnet9.0: dotnet8.0: ASP.NET Core Denial of Service Vulnerability (CVE-2026-96236)

* dotnet8.0: dotnet10.0: dotnet9.0: .NET Remote Code Execution Vulnerability (CVE-2026-96237)

* dotnet8.0: dotnet10.0: dotnet9.0: dotnet: .NET Security Feature Bypass Vulnerability (CVE-2026-96238)

Bug Fix(es) and Enhancement(s):

* Update .NET 8.0 to SDK 8.0.132 and Runtime 8.0.32 [rhel-10.2.z] (JIRA:Rocky Linux-277794)

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

2548778 2548781 2548784 2548786 2548787 2548790 2548791 2548792 2548793 2548796 2548798 2548799 2548800 2548802 2548803 2548804 2548805 2548806 2548807 2548808 2548809

CVEs

CVE-2026-58280 CVE-2026-66822 CVE-2026-69651 CVE-2026-70159 CVE-2026-70175 CVE-2026-70179 CVE-2026-70181 CVE-2026-70183 CVE-2026-70186 CVE-2026-70188 CVE-2026-70196 CVE-2026-88092 CVE-2026-92707 CVE-2026-96222 CVE-2026-96225 CVE-2026-96230 CVE-2026-96231 CVE-2026-96233 CVE-2026-96236 CVE-2026-96237 CVE-2026-96238

Affected packages

Rocky Linux 10 s390x - CRB

dotnet-sdk-8.0-source-built-artifacts-0:8.0.132-1.el10_2.s390x.rpm

Rocky Linux 10 x86_64 - AppStream

dotnet-runtime-8.0-debuginfo-0:8.0.32-1.el10_2.x86_64.rpm aspnetcore-runtime-dbg-8.0-0:8.0.32-1.el10_2.x86_64.rpm aspnetcore-runtime-8.0-0:8.0.32-1.el10_2.x86_64.rpm dotnet8.0-debugsource-0:8.0.132-1.el10_2.x86_64.rpm dotnet-apphost-pack-8.0-0:8.0.32-1.el10_2.x86_64.rpm dotnet8.0-0:8.0.132-1.el10_2.src.rpm aspnetcore-targeting-pack-8.0-0:8.0.32-1.el10_2.x86_64.rpm dotnet-templates-8.0-0:8.0.132-1.el10_2.x86_64.rpm dotnet-sdk-8.0-debuginfo-0:8.0.132-1.el10_2.x86_64.rpm dotnet-apphost-pack-8.0-debuginfo-0:8.0.32-1.el10_2.x86_64.rpm dotnet-targeting-pack-8.0-0:8.0.32-1.el10_2.x86_64.rpm dotnet-hostfxr-8.0-0:8.0.32-1.el10_2.x86_64.rpm dotnet-runtime-dbg-8.0-0:8.0.32-1.el10_2.x86_64.rpm dotnet-sdk-dbg-8.0-0:8.0.132-1.el10_2.x86_64.rpm dotnet-sdk-8.0-0:8.0.132-1.el10_2.x86_64.rpm dotnet-runtime-8.0-0:8.0.32-1.el10_2.x86_64.rpm dotnet-hostfxr-8.0-debuginfo-0:8.0.32-1.el10_2.x86_64.rpm

Rocky Linux 10 s390x - AppStream

dotnet-sdk-8.0-debuginfo-0:8.0.132-1.el10_2.s390x.rpm dotnet-hostfxr-8.0-debuginfo-0:8.0.32-1.el10_2.s390x.rpm dotnet-runtime-8.0-debuginfo-0:8.0.32-1.el10_2.s390x.rpm aspnetcore-runtime-dbg-8.0-0:8.0.32-1.el10_2.s390x.rpm dotnet8.0-0:8.0.132-1.el10_2.src.rpm aspnetcore-targeting-pack-8.0-0:8.0.32-1.el10_2.s390x.rpm dotnet-targeting-pack-8.0-0:8.0.32-1.el10_2.s390x.rpm dotnet-sdk-8.0-0:8.0.132-1.el10_2.s390x.rpm dotnet-runtime-8.0-0:8.0.32-1.el10_2.s390x.rpm dotnet-hostfxr-8.0-0:8.0.32-1.el10_2.s390x.rpm aspnetcore-runtime-8.0-0:8.0.32-1.el10_2.s390x.rpm dotnet8.0-debugsource-0:8.0.132-1.el10_2.s390x.rpm dotnet-apphost-pack-8.0-0:8.0.32-1.el10_2.s390x.rpm dotnet-runtime-dbg-8.0-0:8.0.32-1.el10_2.s390x.rpm dotnet-apphost-pack-8.0-debuginfo-0:8.0.32-1.el10_2.s390x.rpm dotnet-sdk-dbg-8.0-0:8.0.132-1.el10_2.s390x.rpm dotnet-templates-8.0-0:8.0.132-1.el10_2.s390x.rpm

Rocky Linux 10 aarch64 - AppStream

dotnet-templates-8.0-0:8.0.132-1.el10_2.aarch64.rpm aspnetcore-runtime-8.0-0:8.0.32-1.el10_2.aarch64.rpm dotnet-runtime-8.0-0:8.0.32-1.el10_2.aarch64.rpm aspnetcore-targeting-pack-8.0-0:8.0.32-1.el10_2.aarch64.rpm dotnet-hostfxr-8.0-0:8.0.32-1.el10_2.aarch64.rpm aspnetcore-runtime-dbg-8.0-0:8.0.32-1.el10_2.aarch64.rpm dotnet-hostfxr-8.0-debuginfo-0:8.0.32-1.el10_2.aarch64.rpm dotnet-targeting-pack-8.0-0:8.0.32-1.el10_2.aarch64.rpm dotnet8.0-0:8.0.132-1.el10_2.src.rpm dotnet-apphost-pack-8.0-debuginfo-0:8.0.32-1.el10_2.aarch64.rpm dotnet-sdk-8.0-0:8.0.132-1.el10_2.aarch64.rpm dotnet-sdk-dbg-8.0-0:8.0.132-1.el10_2.aarch64.rpm dotnet8.0-debugsource-0:8.0.132-1.el10_2.aarch64.rpm dotnet-sdk-8.0-debuginfo-0:8.0.132-1.el10_2.aarch64.rpm dotnet-runtime-8.0-debuginfo-0:8.0.32-1.el10_2.aarch64.rpm dotnet-apphost-pack-8.0-0:8.0.32-1.el10_2.aarch64.rpm dotnet-runtime-dbg-8.0-0:8.0.32-1.el10_2.aarch64.rpm

Rocky Linux 10 x86_64 - CRB

dotnet-sdk-8.0-source-built-artifacts-0:8.0.132-1.el10_2.x86_64.rpm

Rocky Linux 10 ppc64le - AppStream

dotnet-targeting-pack-8.0-0:8.0.32-1.el10_2.ppc64le.rpm dotnet-hostfxr-8.0-debuginfo-0:8.0.32-1.el10_2.ppc64le.rpm aspnetcore-targeting-pack-8.0-0:8.0.32-1.el10_2.ppc64le.rpm dotnet-sdk-8.0-debuginfo-0:8.0.132-1.el10_2.ppc64le.rpm dotnet8.0-0:8.0.132-1.el10_2.src.rpm dotnet-sdk-8.0-0:8.0.132-1.el10_2.ppc64le.rpm aspnetcore-runtime-dbg-8.0-0:8.0.32-1.el10_2.ppc64le.rpm dotnet-runtime-8.0-debuginfo-0:8.0.32-1.el10_2.ppc64le.rpm aspnetcore-runtime-8.0-0:8.0.32-1.el10_2.ppc64le.rpm dotnet-apphost-pack-8.0-debuginfo-0:8.0.32-1.el10_2.ppc64le.rpm dotnet-runtime-8.0-0:8.0.32-1.el10_2.ppc64le.rpm dotnet-hostfxr-8.0-0:8.0.32-1.el10_2.ppc64le.rpm dotnet8.0-debugsource-0:8.0.132-1.el10_2.ppc64le.rpm dotnet-apphost-pack-8.0-0:8.0.32-1.el10_2.ppc64le.rpm dotnet-sdk-dbg-8.0-0:8.0.132-1.el10_2.ppc64le.rpm dotnet-runtime-dbg-8.0-0:8.0.32-1.el10_2.ppc64le.rpm dotnet-templates-8.0-0:8.0.132-1.el10_2.ppc64le.rpm

Rocky Linux 10 riscv64 - AppStream

dotnet8.0-0:8.0.132-1.el10_2.src.rpm

Rocky Linux 10 ppc64le - CRB

dotnet-sdk-8.0-source-built-artifacts-0:8.0.132-1.el10_2.ppc64le.rpm

Rocky Linux 10 aarch64 - CRB

dotnet-sdk-8.0-source-built-artifacts-0:8.0.132-1.el10_2.aarch64.rpm