RHSA-2026:54541: Important: .NET 8.0 security, bug fix, and enhancement update

Published Aug 13, 2026
·
Updated

.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: 8.0.130Runtime version: 8.0.30Security Fix(es): .NET: .NET Core: .NET Security Feature Bypass Vulnerability (CVE-2026-62899) .NET: .NET Information Disclosure Vulnerability (CVE-2026-62900) .NET: .NET Denial of Service Vulnerability (CVE-2026-62901) .NET: .NET Elevation of Privilege Vulnerability (CVE-2026-62909) Bug Fix(es) and Enhancement(s): Update .NET 8.0 to SDK 8.0.130 and Runtime 8.0.30 [rhel-10.2.z] (JIRA:RHEL-235472) 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.

Other sources

Important: .NET 8.0 security, bug fix, and enhancement update

— Red Hat

Affected Software

93 affected componentsFixes available
Red Hat Red Hat Enterprise Linux for x86_64
Red Hat Red Hat Enterprise Linux for x86_64 - 4 years of updates
Red Hat Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Red Hat Enterprise Linux for ARM 64 - 4 years of updates
Red Hat Red Hat CodeReady Linux Builder for IBM z Systems - Extended Update Support
Red Hat Red Hat CodeReady Linux Builder for x86_64
Red Hat Red Hat Enterprise Linux for ARM 64
Red Hat Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support
Red Hat Red Hat Enterprise Linux for IBM z Systems
Red Hat Red Hat CodeReady Linux Builder for IBM z Systems
Red Hat Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Red Hat Enterprise Linux for Power, little endian
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle
Red Hat Red Hat CodeReady Linux Builder for ARM 64
Red Hat Red Hat Enterprise Linux for IBM z Systems - 4 years of updates
Red Hat Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support
Red Hat Red Hat Enterprise Linux for Power, little endian - 4 years of support
Red Hat Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle
Red Hat Red Hat CodeReady Linux Builder for Power, little endian
Red Hat Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support
redhat/dotnet8.0<8.0.130-1.el10_2
8.0.130-1.el10_2
redhat/aspnetcore-runtime<8.0-8.0.30-1.el10_2
8.0-8.0.30-1.el10_2
redhat/aspnetcore-runtime-dbg<8.0-8.0.30-1.el10_2
8.0-8.0.30-1.el10_2
redhat/aspnetcore-targeting-pack<8.0-8.0.30-1.el10_2
8.0-8.0.30-1.el10_2
redhat/dotnet-apphost-pack<8.0-8.0.30-1.el10_2
8.0-8.0.30-1.el10_2
redhat/dotnet-apphost-pack<8.0-debuginfo-8.0.30-1.el10_2
8.0-debuginfo-8.0.30-1.el10_2
redhat/dotnet-hostfxr<8.0-8.0.30-1.el10_2
8.0-8.0.30-1.el10_2
redhat/dotnet-hostfxr<8.0-debuginfo-8.0.30-1.el10_2
8.0-debuginfo-8.0.30-1.el10_2
redhat/dotnet-runtime<8.0-8.0.30-1.el10_2
8.0-8.0.30-1.el10_2
redhat/dotnet-runtime<8.0-debuginfo-8.0.30-1.el10_2
8.0-debuginfo-8.0.30-1.el10_2
redhat/dotnet-runtime-dbg<8.0-8.0.30-1.el10_2
8.0-8.0.30-1.el10_2
redhat/dotnet-sdk<8.0-8.0.130-1.el10_2
8.0-8.0.130-1.el10_2
redhat/dotnet-sdk<8.0-debuginfo-8.0.130-1.el10_2
8.0-debuginfo-8.0.130-1.el10_2
redhat/dotnet-sdk-dbg<8.0-8.0.130-1.el10_2
8.0-8.0.130-1.el10_2
redhat/dotnet-targeting-pack<8.0-8.0.30-1.el10_2
8.0-8.0.30-1.el10_2
redhat/dotnet-templates<8.0-8.0.130-1.el10_2
8.0-8.0.130-1.el10_2
redhat/dotnet8.0-debugsource<8.0.130-1.el10_2
8.0.130-1.el10_2
redhat/aspnetcore-runtime<8.0-8.0.30-1.el10_2
8.0-8.0.30-1.el10_2
redhat/aspnetcore-runtime-dbg<8.0-8.0.30-1.el10_2
8.0-8.0.30-1.el10_2
redhat/aspnetcore-targeting-pack<8.0-8.0.30-1.el10_2
8.0-8.0.30-1.el10_2
redhat/dotnet-apphost-pack<8.0-8.0.30-1.el10_2
8.0-8.0.30-1.el10_2
redhat/dotnet-apphost-pack<8.0-debuginfo-8.0.30-1.el10_2
8.0-debuginfo-8.0.30-1.el10_2
redhat/dotnet-hostfxr<8.0-8.0.30-1.el10_2
8.0-8.0.30-1.el10_2
redhat/dotnet-hostfxr<8.0-debuginfo-8.0.30-1.el10_2
8.0-debuginfo-8.0.30-1.el10_2
redhat/dotnet-runtime<8.0-8.0.30-1.el10_2
8.0-8.0.30-1.el10_2
redhat/dotnet-runtime<8.0-debuginfo-8.0.30-1.el10_2
8.0-debuginfo-8.0.30-1.el10_2
redhat/dotnet-runtime-dbg<8.0-8.0.30-1.el10_2
8.0-8.0.30-1.el10_2
redhat/dotnet-sdk<8.0-8.0.130-1.el10_2
8.0-8.0.130-1.el10_2
redhat/dotnet-sdk<8.0-debuginfo-8.0.130-1.el10_2
8.0-debuginfo-8.0.130-1.el10_2
redhat/dotnet-sdk-dbg<8.0-8.0.130-1.el10_2
8.0-8.0.130-1.el10_2
redhat/dotnet-targeting-pack<8.0-8.0.30-1.el10_2
8.0-8.0.30-1.el10_2
redhat/dotnet-templates<8.0-8.0.130-1.el10_2
8.0-8.0.130-1.el10_2
redhat/dotnet8.0-debugsource<8.0.130-1.el10_2
8.0.130-1.el10_2
redhat/aspnetcore-runtime<8.0-8.0.30-1.el10_2
8.0-8.0.30-1.el10_2
redhat/aspnetcore-runtime-dbg<8.0-8.0.30-1.el10_2
8.0-8.0.30-1.el10_2
redhat/aspnetcore-targeting-pack<8.0-8.0.30-1.el10_2
8.0-8.0.30-1.el10_2
redhat/dotnet-apphost-pack<8.0-8.0.30-1.el10_2
8.0-8.0.30-1.el10_2
redhat/dotnet-apphost-pack<8.0-debuginfo-8.0.30-1.el10_2
8.0-debuginfo-8.0.30-1.el10_2
redhat/dotnet-hostfxr<8.0-8.0.30-1.el10_2
8.0-8.0.30-1.el10_2
redhat/dotnet-hostfxr<8.0-debuginfo-8.0.30-1.el10_2
8.0-debuginfo-8.0.30-1.el10_2
redhat/dotnet-runtime<8.0-8.0.30-1.el10_2
8.0-8.0.30-1.el10_2
redhat/dotnet-runtime<8.0-debuginfo-8.0.30-1.el10_2
8.0-debuginfo-8.0.30-1.el10_2
redhat/dotnet-runtime-dbg<8.0-8.0.30-1.el10_2
8.0-8.0.30-1.el10_2
redhat/dotnet-sdk<8.0-8.0.130-1.el10_2
8.0-8.0.130-1.el10_2
redhat/dotnet-sdk<8.0-debuginfo-8.0.130-1.el10_2
8.0-debuginfo-8.0.130-1.el10_2
redhat/dotnet-sdk-dbg<8.0-8.0.130-1.el10_2
8.0-8.0.130-1.el10_2
redhat/dotnet-targeting-pack<8.0-8.0.30-1.el10_2
8.0-8.0.30-1.el10_2
redhat/dotnet-templates<8.0-8.0.130-1.el10_2
8.0-8.0.130-1.el10_2
redhat/dotnet8.0-debugsource<8.0.130-1.el10_2
8.0.130-1.el10_2
redhat/aspnetcore-runtime<8.0-8.0.30-1.el10_2.aa
8.0-8.0.30-1.el10_2.aa
redhat/aspnetcore-runtime-dbg<8.0-8.0.30-1.el10_2.aa
8.0-8.0.30-1.el10_2.aa
redhat/aspnetcore-targeting-pack<8.0-8.0.30-1.el10_2.aa
8.0-8.0.30-1.el10_2.aa
redhat/dotnet-apphost-pack<8.0-8.0.30-1.el10_2.aa
8.0-8.0.30-1.el10_2.aa
redhat/dotnet-apphost-pack<8.0-debuginfo-8.0.30-1.el10_2.aa
8.0-debuginfo-8.0.30-1.el10_2.aa
redhat/dotnet-hostfxr<8.0-8.0.30-1.el10_2.aa
8.0-8.0.30-1.el10_2.aa
redhat/dotnet-hostfxr<8.0-debuginfo-8.0.30-1.el10_2.aa
8.0-debuginfo-8.0.30-1.el10_2.aa
redhat/dotnet-runtime<8.0-8.0.30-1.el10_2.aa
8.0-8.0.30-1.el10_2.aa
redhat/dotnet-runtime<8.0-debuginfo-8.0.30-1.el10_2.aa
8.0-debuginfo-8.0.30-1.el10_2.aa
redhat/dotnet-runtime-dbg<8.0-8.0.30-1.el10_2.aa
8.0-8.0.30-1.el10_2.aa
redhat/dotnet-sdk<8.0-8.0.130-1.el10_2.aa
8.0-8.0.130-1.el10_2.aa
redhat/dotnet-sdk<8.0-debuginfo-8.0.130-1.el10_2.aa
8.0-debuginfo-8.0.130-1.el10_2.aa
redhat/dotnet-sdk-dbg<8.0-8.0.130-1.el10_2.aa
8.0-8.0.130-1.el10_2.aa
redhat/dotnet-targeting-pack<8.0-8.0.30-1.el10_2.aa
8.0-8.0.30-1.el10_2.aa
redhat/dotnet-templates<8.0-8.0.130-1.el10_2.aa
8.0-8.0.130-1.el10_2.aa
redhat/dotnet8.0-debugsource<8.0.130-1.el10_2.aa
8.0.130-1.el10_2.aa
redhat/dotnet-sdk<8.0-source-built-artifacts-8.0.130-1.el10_2
8.0-source-built-artifacts-8.0.130-1.el10_2
redhat/dotnet-sdk<8.0-source-built-artifacts-8.0.130-1.el10_2
8.0-source-built-artifacts-8.0.130-1.el10_2
redhat/dotnet-sdk<8.0-source-built-artifacts-8.0.130-1.el10_2.aa
8.0-source-built-artifacts-8.0.130-1.el10_2.aa
redhat/dotnet-sdk<8.0-source-built-artifacts-8.0.130-1.el10_2
8.0-source-built-artifacts-8.0.130-1.el10_2

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade redhat/dotnet8.0 to a version that resolves this vulnerability.

    Fixed in 8.0.130-1.el10_2
  2. Upgrade

    Upgrade redhat/aspnetcore-runtime to a version that resolves this vulnerability.

    Fixed in 8.0-8.0.30-1.el10_2
  3. Upgrade

    Upgrade redhat/aspnetcore-runtime-dbg to a version that resolves this vulnerability.

    Fixed in 8.0-8.0.30-1.el10_2
  4. Upgrade

    Upgrade redhat/aspnetcore-targeting-pack to a version that resolves this vulnerability.

    Fixed in 8.0-8.0.30-1.el10_2
  5. Upgrade

    Upgrade redhat/dotnet-apphost-pack to a version that resolves this vulnerability.

    Fixed in 8.0-8.0.30-1.el10_2
  6. Upgrade

    Upgrade redhat/dotnet-apphost-pack to a version that resolves this vulnerability.

    Fixed in 8.0-debuginfo-8.0.30-1.el10_2
  7. Upgrade

    Upgrade redhat/dotnet-hostfxr to a version that resolves this vulnerability.

    Fixed in 8.0-8.0.30-1.el10_2
  8. Upgrade

    Upgrade redhat/dotnet-hostfxr to a version that resolves this vulnerability.

    Fixed in 8.0-debuginfo-8.0.30-1.el10_2
  9. Upgrade

    Upgrade redhat/dotnet-runtime to a version that resolves this vulnerability.

    Fixed in 8.0-8.0.30-1.el10_2
  10. Upgrade

    Upgrade redhat/dotnet-runtime to a version that resolves this vulnerability.

    Fixed in 8.0-debuginfo-8.0.30-1.el10_2
  11. Upgrade

    Upgrade redhat/dotnet-runtime-dbg to a version that resolves this vulnerability.

    Fixed in 8.0-8.0.30-1.el10_2
  12. Upgrade

    Upgrade redhat/dotnet-sdk to a version that resolves this vulnerability.

    Fixed in 8.0-8.0.130-1.el10_2
  13. Upgrade

    Upgrade redhat/dotnet-sdk to a version that resolves this vulnerability.

    Fixed in 8.0-debuginfo-8.0.130-1.el10_2
  14. Upgrade

    Upgrade redhat/dotnet-sdk-dbg to a version that resolves this vulnerability.

    Fixed in 8.0-8.0.130-1.el10_2
  15. Upgrade

    Upgrade redhat/dotnet-targeting-pack to a version that resolves this vulnerability.

    Fixed in 8.0-8.0.30-1.el10_2
  16. Upgrade

    Upgrade redhat/dotnet-templates to a version that resolves this vulnerability.

    Fixed in 8.0-8.0.130-1.el10_2
  17. Upgrade

    Upgrade redhat/dotnet8.0-debugsource to a version that resolves this vulnerability.

    Fixed in 8.0.130-1.el10_2
  18. Upgrade

    Upgrade redhat/aspnetcore-runtime to a version that resolves this vulnerability.

    Fixed in 8.0-8.0.30-1.el10_2.aa
  19. Upgrade

    Upgrade redhat/aspnetcore-runtime-dbg to a version that resolves this vulnerability.

    Fixed in 8.0-8.0.30-1.el10_2.aa
  20. Upgrade

    Upgrade redhat/aspnetcore-targeting-pack to a version that resolves this vulnerability.

    Fixed in 8.0-8.0.30-1.el10_2.aa
  21. Upgrade

    Upgrade redhat/dotnet-apphost-pack to a version that resolves this vulnerability.

    Fixed in 8.0-8.0.30-1.el10_2.aa
  22. Upgrade

    Upgrade redhat/dotnet-apphost-pack to a version that resolves this vulnerability.

    Fixed in 8.0-debuginfo-8.0.30-1.el10_2.aa
  23. Upgrade

    Upgrade redhat/dotnet-hostfxr to a version that resolves this vulnerability.

    Fixed in 8.0-8.0.30-1.el10_2.aa
  24. Upgrade

    Upgrade redhat/dotnet-hostfxr to a version that resolves this vulnerability.

    Fixed in 8.0-debuginfo-8.0.30-1.el10_2.aa
  25. Upgrade

    Upgrade redhat/dotnet-runtime to a version that resolves this vulnerability.

    Fixed in 8.0-8.0.30-1.el10_2.aa
  26. Upgrade

    Upgrade redhat/dotnet-runtime to a version that resolves this vulnerability.

    Fixed in 8.0-debuginfo-8.0.30-1.el10_2.aa
  27. Upgrade

    Upgrade redhat/dotnet-runtime-dbg to a version that resolves this vulnerability.

    Fixed in 8.0-8.0.30-1.el10_2.aa
  28. Upgrade

    Upgrade redhat/dotnet-sdk to a version that resolves this vulnerability.

    Fixed in 8.0-8.0.130-1.el10_2.aa
  29. Upgrade

    Upgrade redhat/dotnet-sdk to a version that resolves this vulnerability.

    Fixed in 8.0-debuginfo-8.0.130-1.el10_2.aa
  30. Upgrade

    Upgrade redhat/dotnet-sdk-dbg to a version that resolves this vulnerability.

    Fixed in 8.0-8.0.130-1.el10_2.aa
  31. Upgrade

    Upgrade redhat/dotnet-targeting-pack to a version that resolves this vulnerability.

    Fixed in 8.0-8.0.30-1.el10_2.aa
  32. Upgrade

    Upgrade redhat/dotnet-templates to a version that resolves this vulnerability.

    Fixed in 8.0-8.0.130-1.el10_2.aa
  33. Upgrade

    Upgrade redhat/dotnet8.0-debugsource to a version that resolves this vulnerability.

    Fixed in 8.0.130-1.el10_2.aa
  34. Upgrade

    Upgrade redhat/dotnet-sdk to a version that resolves this vulnerability.

    Fixed in 8.0-source-built-artifacts-8.0.130-1.el10_2
  35. Upgrade

    Upgrade redhat/dotnet-sdk to a version that resolves this vulnerability.

    Fixed in 8.0-source-built-artifacts-8.0.130-1.el10_2.aa
  36. Upgrade

    Upgrade .NET SDK/Runtime to a version that resolves this vulnerability.

    Fixed in 8.0.130
  37. Upgrade

    Upgrade .NET Runtime to a version that resolves this vulnerability.

    Fixed in 8.0.30

Event History

Aug 13, 2026
Advisory Published
via Red Hat·12:00 AM
Data Sourced
via Red Hat·12:00 AM
RemedyDescriptionAffected Software
Advisory Published
via Red Hat·11:51 AM
Data Sourced
via Red Hat·11:51 AM
Severity
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Frequently Asked Questions

1

What is the severity of RHSA-2026:54541?

The severity of RHSA-2026:54541 is rated as high with a score of 7.

2

How do I fix RHSA-2026:54541?

To fix RHSA-2026:54541, update your .NET packages to the latest versions as recommended in the release notes.

3

What software is affected by RHSA-2026:54541?

The affected software includes redhat/dotnet-sdk, redhat/dotnet-apphost-pack, redhat/dotnet-hostfxr, redhat/dotnet-runtime, and redhat/aspnetcore-runtime.

4

What does RHSA-2026:54541 address?

RHSA-2026:54541 addresses security vulnerabilities, bug fixes, and enhancements for .NET 8.0.

5

When was RHSA-2026:54541 published?

RHSA-2026:54541 was published on August 13, 2026.

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