RHSA-2026:54538: 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 (JIRA:RHEL-235468) 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

85 affected componentsFixes available
Red Hat Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for ARM 64
Red Hat Red Hat CodeReady Linux Builder for ARM 64
Red Hat Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for IBM z Systems
Red Hat Red Hat CodeReady Linux Builder for x86_64
Red Hat Red Hat Enterprise Linux for x86_64
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for Power, little endian
Red Hat Red Hat CodeReady Linux Builder for Power, little endian
Red Hat Red Hat CodeReady Linux Builder for IBM z Systems
Red Hat Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle
redhat/dotnet8.0<8.0.130-1.el8_10
8.0.130-1.el8_10
redhat/aspnetcore-runtime<8.0-8.0.30-1.el8_10
8.0-8.0.30-1.el8_10
redhat/aspnetcore-runtime-dbg<8.0-8.0.30-1.el8_10
8.0-8.0.30-1.el8_10
redhat/aspnetcore-targeting-pack<8.0-8.0.30-1.el8_10
8.0-8.0.30-1.el8_10
redhat/dotnet-apphost-pack<8.0-8.0.30-1.el8_10
8.0-8.0.30-1.el8_10
redhat/dotnet-apphost-pack<8.0-debuginfo-8.0.30-1.el8_10
8.0-debuginfo-8.0.30-1.el8_10
redhat/dotnet-hostfxr<8.0-8.0.30-1.el8_10
8.0-8.0.30-1.el8_10
redhat/dotnet-hostfxr<8.0-debuginfo-8.0.30-1.el8_10
8.0-debuginfo-8.0.30-1.el8_10
redhat/dotnet-runtime<8.0-8.0.30-1.el8_10
8.0-8.0.30-1.el8_10
redhat/dotnet-runtime<8.0-debuginfo-8.0.30-1.el8_10
8.0-debuginfo-8.0.30-1.el8_10
redhat/dotnet-runtime-dbg<8.0-8.0.30-1.el8_10
8.0-8.0.30-1.el8_10
redhat/dotnet-sdk<8.0-8.0.130-1.el8_10
8.0-8.0.130-1.el8_10
redhat/dotnet-sdk<8.0-debuginfo-8.0.130-1.el8_10
8.0-debuginfo-8.0.130-1.el8_10
redhat/dotnet-sdk-dbg<8.0-8.0.130-1.el8_10
8.0-8.0.130-1.el8_10
redhat/dotnet-targeting-pack<8.0-8.0.30-1.el8_10
8.0-8.0.30-1.el8_10
redhat/dotnet-templates<8.0-8.0.130-1.el8_10
8.0-8.0.130-1.el8_10
redhat/dotnet8.0-debuginfo<8.0.130-1.el8_10
8.0.130-1.el8_10
redhat/dotnet8.0-debugsource<8.0.130-1.el8_10
8.0.130-1.el8_10
redhat/aspnetcore-runtime<8.0-8.0.30-1.el8_10
8.0-8.0.30-1.el8_10
redhat/aspnetcore-runtime-dbg<8.0-8.0.30-1.el8_10
8.0-8.0.30-1.el8_10
redhat/aspnetcore-targeting-pack<8.0-8.0.30-1.el8_10
8.0-8.0.30-1.el8_10
redhat/dotnet-apphost-pack<8.0-8.0.30-1.el8_10
8.0-8.0.30-1.el8_10
redhat/dotnet-apphost-pack<8.0-debuginfo-8.0.30-1.el8_10
8.0-debuginfo-8.0.30-1.el8_10
redhat/dotnet-hostfxr<8.0-8.0.30-1.el8_10
8.0-8.0.30-1.el8_10
redhat/dotnet-hostfxr<8.0-debuginfo-8.0.30-1.el8_10
8.0-debuginfo-8.0.30-1.el8_10
redhat/dotnet-runtime<8.0-8.0.30-1.el8_10
8.0-8.0.30-1.el8_10
redhat/dotnet-runtime<8.0-debuginfo-8.0.30-1.el8_10
8.0-debuginfo-8.0.30-1.el8_10
redhat/dotnet-runtime-dbg<8.0-8.0.30-1.el8_10
8.0-8.0.30-1.el8_10
redhat/dotnet-sdk<8.0-8.0.130-1.el8_10
8.0-8.0.130-1.el8_10
redhat/dotnet-sdk<8.0-debuginfo-8.0.130-1.el8_10
8.0-debuginfo-8.0.130-1.el8_10
redhat/dotnet-sdk-dbg<8.0-8.0.130-1.el8_10
8.0-8.0.130-1.el8_10
redhat/dotnet-targeting-pack<8.0-8.0.30-1.el8_10
8.0-8.0.30-1.el8_10
redhat/dotnet-templates<8.0-8.0.130-1.el8_10
8.0-8.0.130-1.el8_10
redhat/dotnet8.0-debuginfo<8.0.130-1.el8_10
8.0.130-1.el8_10
redhat/dotnet8.0-debugsource<8.0.130-1.el8_10
8.0.130-1.el8_10
redhat/aspnetcore-runtime<8.0-8.0.30-1.el8_10
8.0-8.0.30-1.el8_10
redhat/aspnetcore-runtime-dbg<8.0-8.0.30-1.el8_10
8.0-8.0.30-1.el8_10
redhat/aspnetcore-targeting-pack<8.0-8.0.30-1.el8_10
8.0-8.0.30-1.el8_10
redhat/dotnet-apphost-pack<8.0-8.0.30-1.el8_10
8.0-8.0.30-1.el8_10
redhat/dotnet-apphost-pack<8.0-debuginfo-8.0.30-1.el8_10
8.0-debuginfo-8.0.30-1.el8_10
redhat/dotnet-hostfxr<8.0-8.0.30-1.el8_10
8.0-8.0.30-1.el8_10
redhat/dotnet-hostfxr<8.0-debuginfo-8.0.30-1.el8_10
8.0-debuginfo-8.0.30-1.el8_10
redhat/dotnet-runtime<8.0-8.0.30-1.el8_10
8.0-8.0.30-1.el8_10
redhat/dotnet-runtime<8.0-debuginfo-8.0.30-1.el8_10
8.0-debuginfo-8.0.30-1.el8_10
redhat/dotnet-runtime-dbg<8.0-8.0.30-1.el8_10
8.0-8.0.30-1.el8_10
redhat/dotnet-sdk<8.0-8.0.130-1.el8_10
8.0-8.0.130-1.el8_10
redhat/dotnet-sdk<8.0-debuginfo-8.0.130-1.el8_10
8.0-debuginfo-8.0.130-1.el8_10
redhat/dotnet-sdk-dbg<8.0-8.0.130-1.el8_10
8.0-8.0.130-1.el8_10
redhat/dotnet-targeting-pack<8.0-8.0.30-1.el8_10
8.0-8.0.30-1.el8_10
redhat/dotnet-templates<8.0-8.0.130-1.el8_10
8.0-8.0.130-1.el8_10
redhat/dotnet8.0-debuginfo<8.0.130-1.el8_10
8.0.130-1.el8_10
redhat/dotnet8.0-debugsource<8.0.130-1.el8_10
8.0.130-1.el8_10
redhat/aspnetcore-runtime<8.0-8.0.30-1.el8_10.aa
8.0-8.0.30-1.el8_10.aa
redhat/aspnetcore-runtime-dbg<8.0-8.0.30-1.el8_10.aa
8.0-8.0.30-1.el8_10.aa
redhat/aspnetcore-targeting-pack<8.0-8.0.30-1.el8_10.aa
8.0-8.0.30-1.el8_10.aa
redhat/dotnet-apphost-pack<8.0-8.0.30-1.el8_10.aa
8.0-8.0.30-1.el8_10.aa
redhat/dotnet-apphost-pack<8.0-debuginfo-8.0.30-1.el8_10.aa
8.0-debuginfo-8.0.30-1.el8_10.aa
redhat/dotnet-hostfxr<8.0-8.0.30-1.el8_10.aa
8.0-8.0.30-1.el8_10.aa
redhat/dotnet-hostfxr<8.0-debuginfo-8.0.30-1.el8_10.aa
8.0-debuginfo-8.0.30-1.el8_10.aa
redhat/dotnet-runtime<8.0-8.0.30-1.el8_10.aa
8.0-8.0.30-1.el8_10.aa
redhat/dotnet-runtime<8.0-debuginfo-8.0.30-1.el8_10.aa
8.0-debuginfo-8.0.30-1.el8_10.aa
redhat/dotnet-runtime-dbg<8.0-8.0.30-1.el8_10.aa
8.0-8.0.30-1.el8_10.aa
redhat/dotnet-sdk<8.0-8.0.130-1.el8_10.aa
8.0-8.0.130-1.el8_10.aa
redhat/dotnet-sdk<8.0-debuginfo-8.0.130-1.el8_10.aa
8.0-debuginfo-8.0.130-1.el8_10.aa
redhat/dotnet-sdk-dbg<8.0-8.0.130-1.el8_10.aa
8.0-8.0.130-1.el8_10.aa
redhat/dotnet-targeting-pack<8.0-8.0.30-1.el8_10.aa
8.0-8.0.30-1.el8_10.aa
redhat/dotnet-templates<8.0-8.0.130-1.el8_10.aa
8.0-8.0.130-1.el8_10.aa
redhat/dotnet8.0-debuginfo<8.0.130-1.el8_10.aa
8.0.130-1.el8_10.aa
redhat/dotnet8.0-debugsource<8.0.130-1.el8_10.aa
8.0.130-1.el8_10.aa
redhat/dotnet-sdk<8.0-source-built-artifacts-8.0.130-1.el8_10
8.0-source-built-artifacts-8.0.130-1.el8_10
redhat/dotnet-sdk<8.0-source-built-artifacts-8.0.130-1.el8_10
8.0-source-built-artifacts-8.0.130-1.el8_10
redhat/dotnet-sdk<8.0-source-built-artifacts-8.0.130-1.el8_10.aa
8.0-source-built-artifacts-8.0.130-1.el8_10.aa
redhat/dotnet-sdk<8.0-source-built-artifacts-8.0.130-1.el8_10
8.0-source-built-artifacts-8.0.130-1.el8_10

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.el8_10
  2. Upgrade

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

    Fixed in 8.0-8.0.30-1.el8_10
  3. Upgrade

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

    Fixed in 8.0-8.0.30-1.el8_10
  4. Upgrade

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

    Fixed in 8.0-8.0.30-1.el8_10
  5. Upgrade

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

    Fixed in 8.0-8.0.30-1.el8_10
  6. Upgrade

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

    Fixed in 8.0-debuginfo-8.0.30-1.el8_10
  7. Upgrade

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

    Fixed in 8.0-8.0.30-1.el8_10
  8. Upgrade

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

    Fixed in 8.0-debuginfo-8.0.30-1.el8_10
  9. Upgrade

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

    Fixed in 8.0-8.0.30-1.el8_10
  10. Upgrade

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

    Fixed in 8.0-debuginfo-8.0.30-1.el8_10
  11. Upgrade

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

    Fixed in 8.0-8.0.30-1.el8_10
  12. Upgrade

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

    Fixed in 8.0-8.0.130-1.el8_10
  13. Upgrade

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

    Fixed in 8.0-debuginfo-8.0.130-1.el8_10
  14. Upgrade

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

    Fixed in 8.0-8.0.130-1.el8_10
  15. Upgrade

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

    Fixed in 8.0-8.0.30-1.el8_10
  16. Upgrade

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

    Fixed in 8.0-8.0.130-1.el8_10
  17. Upgrade

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

    Fixed in 8.0.130-1.el8_10
  18. Upgrade

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

    Fixed in 8.0.130-1.el8_10
  19. Upgrade

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

    Fixed in 8.0-8.0.30-1.el8_10.aa
  20. Upgrade

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

    Fixed in 8.0-8.0.30-1.el8_10.aa
  21. Upgrade

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

    Fixed in 8.0-8.0.30-1.el8_10.aa
  22. Upgrade

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

    Fixed in 8.0-8.0.30-1.el8_10.aa
  23. Upgrade

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

    Fixed in 8.0-debuginfo-8.0.30-1.el8_10.aa
  24. Upgrade

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

    Fixed in 8.0-8.0.30-1.el8_10.aa
  25. Upgrade

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

    Fixed in 8.0-debuginfo-8.0.30-1.el8_10.aa
  26. Upgrade

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

    Fixed in 8.0-8.0.30-1.el8_10.aa
  27. Upgrade

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

    Fixed in 8.0-debuginfo-8.0.30-1.el8_10.aa
  28. Upgrade

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

    Fixed in 8.0-8.0.30-1.el8_10.aa
  29. Upgrade

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

    Fixed in 8.0-8.0.130-1.el8_10.aa
  30. Upgrade

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

    Fixed in 8.0-debuginfo-8.0.130-1.el8_10.aa
  31. Upgrade

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

    Fixed in 8.0-8.0.130-1.el8_10.aa
  32. Upgrade

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

    Fixed in 8.0-8.0.30-1.el8_10.aa
  33. Upgrade

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

    Fixed in 8.0-8.0.130-1.el8_10.aa
  34. Upgrade

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

    Fixed in 8.0.130-1.el8_10.aa
  35. Upgrade

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

    Fixed in 8.0.130-1.el8_10.aa
  36. Upgrade

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

    Fixed in 8.0-source-built-artifacts-8.0.130-1.el8_10
  37. Upgrade

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

    Fixed in 8.0-source-built-artifacts-8.0.130-1.el8_10.aa
  38. Upgrade

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

    Fixed in 8.0.130
  39. Upgrade

    Upgrade dotnet/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·11:41 AM
Data Sourced
via Red Hat·11:41 AM
Severity
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Frequently Asked Questions

1

What is the severity of RHSA-2026:54538?

The severity of RHSA-2026:54538 is high, rated at 7.

2

How can I fix the vulnerabilities in RHSA-2026:54538?

To fix the vulnerabilities in RHSA-2026:54538, you should update your .NET packages to the latest available versions.

3

What software is affected by RHSA-2026:54538?

The software affected by RHSA-2026:54538 includes various .NET packages such as redhat/dotnet-sdk, redhat/dotnet-runtime, and redhat/aspnetcore-runtime.

4

What is the release date of RHSA-2026:54538?

RHSA-2026:54538 was published on August 13, 2026.

5

What type of applications does .NET focus on according to RHSA-2026:54538?

According to RHSA-2026:54538, .NET focuses on creating console applications, web applications, and micro-services.

Company

Resources

Contact

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