RLSA-2026:4450

Synopsis

Important: .NET 9.0 security update

Description

.NET is a managed-software framework. It implements a subset of the .NET framework APIs and several new APIs, and it includes a CLR implementation.

New versions of .NET that address a security vulnerability are now available. The updated versions are .NET SDK 9.0.115 and .NET Runtime 9.0.14.Security Fix(es):

* .net: .NET: Denial of Service via out-of-bounds read (CVE-2026-26127)

* asp.net: ASP.NET Core: Denial of Service via uncontrolled resource allocation (CVE-2026-26130)

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 s390x Rocky Linux 10 x86_64

Fixes

2446134 2446098

CVEs

CVE-2026-26127 CVE-2026-26130

Affected packages

Rocky Linux 10 aarch64 - CRB

dotnet-sdk-9.0-source-built-artifacts-0:9.0.115-1.el10_1.aarch64.rpm

Rocky Linux 10 ppc64le - AppStream

dotnet-hostfxr-9.0-0:9.0.14-1.el10_1.ppc64le.rpm dotnet-sdk-9.0-0:9.0.115-1.el10_1.ppc64le.rpm dotnet-hostfxr-9.0-debuginfo-0:9.0.14-1.el10_1.ppc64le.rpm dotnet-sdk-dbg-9.0-0:9.0.115-1.el10_1.ppc64le.rpm dotnet-apphost-pack-9.0-0:9.0.14-1.el10_1.ppc64le.rpm dotnet9.0-debugsource-0:9.0.115-1.el10_1.ppc64le.rpm netstandard-targeting-pack-2.1-0:9.0.115-1.el10_1.ppc64le.rpm dotnet-runtime-9.0-0:9.0.14-1.el10_1.ppc64le.rpm dotnet-runtime-dbg-9.0-0:9.0.14-1.el10_1.ppc64le.rpm dotnet-sdk-9.0-debuginfo-0:9.0.115-1.el10_1.ppc64le.rpm aspnetcore-targeting-pack-9.0-0:9.0.14-1.el10_1.ppc64le.rpm aspnetcore-runtime-9.0-0:9.0.14-1.el10_1.ppc64le.rpm aspnetcore-runtime-dbg-9.0-0:9.0.14-1.el10_1.ppc64le.rpm dotnet-templates-9.0-0:9.0.115-1.el10_1.ppc64le.rpm dotnet-targeting-pack-9.0-0:9.0.14-1.el10_1.ppc64le.rpm dotnet-runtime-9.0-debuginfo-0:9.0.14-1.el10_1.ppc64le.rpm dotnet9.0-0:9.0.115-1.el10_1.src.rpm dotnet-apphost-pack-9.0-debuginfo-0:9.0.14-1.el10_1.ppc64le.rpm

Rocky Linux 10 s390x - AppStream

dotnet-runtime-9.0-debuginfo-0:9.0.14-1.el10_1.s390x.rpm dotnet-sdk-9.0-0:9.0.115-1.el10_1.s390x.rpm dotnet-hostfxr-9.0-debuginfo-0:9.0.14-1.el10_1.s390x.rpm netstandard-targeting-pack-2.1-0:9.0.115-1.el10_1.s390x.rpm dotnet-templates-9.0-0:9.0.115-1.el10_1.s390x.rpm dotnet9.0-debugsource-0:9.0.115-1.el10_1.s390x.rpm aspnetcore-runtime-dbg-9.0-0:9.0.14-1.el10_1.s390x.rpm dotnet-sdk-dbg-9.0-0:9.0.115-1.el10_1.s390x.rpm dotnet-targeting-pack-9.0-0:9.0.14-1.el10_1.s390x.rpm dotnet-hostfxr-9.0-0:9.0.14-1.el10_1.s390x.rpm dotnet-runtime-dbg-9.0-0:9.0.14-1.el10_1.s390x.rpm dotnet-sdk-9.0-debuginfo-0:9.0.115-1.el10_1.s390x.rpm aspnetcore-targeting-pack-9.0-0:9.0.14-1.el10_1.s390x.rpm dotnet-apphost-pack-9.0-debuginfo-0:9.0.14-1.el10_1.s390x.rpm dotnet-apphost-pack-9.0-0:9.0.14-1.el10_1.s390x.rpm dotnet-runtime-9.0-0:9.0.14-1.el10_1.s390x.rpm aspnetcore-runtime-9.0-0:9.0.14-1.el10_1.s390x.rpm dotnet9.0-0:9.0.115-1.el10_1.src.rpm

Rocky Linux 10 aarch64 - AppStream

dotnet-sdk-9.0-0:9.0.115-1.el10_1.aarch64.rpm dotnet-apphost-pack-9.0-0:9.0.14-1.el10_1.aarch64.rpm dotnet-runtime-dbg-9.0-0:9.0.14-1.el10_1.aarch64.rpm dotnet-runtime-9.0-0:9.0.14-1.el10_1.aarch64.rpm dotnet-templates-9.0-0:9.0.115-1.el10_1.aarch64.rpm dotnet9.0-debugsource-0:9.0.115-1.el10_1.aarch64.rpm dotnet-hostfxr-9.0-0:9.0.14-1.el10_1.aarch64.rpm dotnet-sdk-9.0-debuginfo-0:9.0.115-1.el10_1.aarch64.rpm dotnet-targeting-pack-9.0-0:9.0.14-1.el10_1.aarch64.rpm aspnetcore-runtime-9.0-0:9.0.14-1.el10_1.aarch64.rpm aspnetcore-runtime-dbg-9.0-0:9.0.14-1.el10_1.aarch64.rpm dotnet-runtime-9.0-debuginfo-0:9.0.14-1.el10_1.aarch64.rpm dotnet-hostfxr-9.0-debuginfo-0:9.0.14-1.el10_1.aarch64.rpm dotnet-sdk-aot-9.0-debuginfo-0:9.0.115-1.el10_1.aarch64.rpm dotnet-apphost-pack-9.0-debuginfo-0:9.0.14-1.el10_1.aarch64.rpm netstandard-targeting-pack-2.1-0:9.0.115-1.el10_1.aarch64.rpm dotnet-sdk-aot-9.0-0:9.0.115-1.el10_1.aarch64.rpm aspnetcore-targeting-pack-9.0-0:9.0.14-1.el10_1.aarch64.rpm dotnet9.0-0:9.0.115-1.el10_1.src.rpm dotnet-sdk-dbg-9.0-0:9.0.115-1.el10_1.aarch64.rpm

Rocky Linux 10 x86_64 - AppStream

dotnet-apphost-pack-9.0-0:9.0.14-1.el10_1.x86_64.rpm netstandard-targeting-pack-2.1-0:9.0.115-1.el10_1.x86_64.rpm dotnet-runtime-9.0-debuginfo-0:9.0.14-1.el10_1.x86_64.rpm aspnetcore-runtime-dbg-9.0-0:9.0.14-1.el10_1.x86_64.rpm dotnet-targeting-pack-9.0-0:9.0.14-1.el10_1.x86_64.rpm aspnetcore-targeting-pack-9.0-0:9.0.14-1.el10_1.x86_64.rpm dotnet-runtime-9.0-0:9.0.14-1.el10_1.x86_64.rpm dotnet-hostfxr-9.0-debuginfo-0:9.0.14-1.el10_1.x86_64.rpm dotnet-sdk-aot-9.0-debuginfo-0:9.0.115-1.el10_1.x86_64.rpm dotnet-sdk-9.0-debuginfo-0:9.0.115-1.el10_1.x86_64.rpm dotnet-sdk-aot-9.0-0:9.0.115-1.el10_1.x86_64.rpm dotnet-sdk-9.0-0:9.0.115-1.el10_1.x86_64.rpm dotnet-sdk-dbg-9.0-0:9.0.115-1.el10_1.x86_64.rpm dotnet-apphost-pack-9.0-debuginfo-0:9.0.14-1.el10_1.x86_64.rpm aspnetcore-runtime-9.0-0:9.0.14-1.el10_1.x86_64.rpm dotnet9.0-debugsource-0:9.0.115-1.el10_1.x86_64.rpm dotnet-runtime-dbg-9.0-0:9.0.14-1.el10_1.x86_64.rpm dotnet-hostfxr-9.0-0:9.0.14-1.el10_1.x86_64.rpm dotnet9.0-0:9.0.115-1.el10_1.src.rpm dotnet-templates-9.0-0:9.0.115-1.el10_1.x86_64.rpm

Rocky Linux 10 ppc64le - CRB

dotnet-sdk-9.0-source-built-artifacts-0:9.0.115-1.el10_1.ppc64le.rpm

Rocky Linux 10 x86_64 - CRB

dotnet-sdk-9.0-source-built-artifacts-0:9.0.115-1.el10_1.x86_64.rpm

Rocky Linux 10 s390x - CRB

dotnet-sdk-9.0-source-built-artifacts-0:9.0.115-1.el10_1.s390x.rpm