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OpenAdvisories
High ALSA-2026:21297 1 CVE

Important: .NET 10.0 security update

Published May 27, 2026 · Updated Oct 29, 2026

Summary

.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 10.0.108 and .NET Runtime 10.0.8.Security Fix(es):

* dotnet: .NET: infinite loop allows an attacker to cause a denial of service (CVE-2026-42899)

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.

Fixed packages 14

ReleasePackageFixed in
AlmaLinux · 9 aspnetcore-runtime-10.0 10.0.8-1.el9_8
AlmaLinux · 9 aspnetcore-runtime-dbg-10.0 10.0.8-1.el9_8
AlmaLinux · 9 aspnetcore-targeting-pack-10.0 10.0.8-1.el9_8
AlmaLinux · 9 dotnet-apphost-pack-10.0 10.0.8-1.el9_8
AlmaLinux · 9 dotnet-host 10.0.8-1.el9_8
AlmaLinux · 9 dotnet-hostfxr-10.0 10.0.8-1.el9_8
AlmaLinux · 9 dotnet-runtime-10.0 10.0.8-1.el9_8
AlmaLinux · 9 dotnet-runtime-dbg-10.0 10.0.8-1.el9_8
AlmaLinux · 9 dotnet-sdk-10.0 10.0.108-1.el9_8
AlmaLinux · 9 dotnet-sdk-10.0-source-built-artifacts 10.0.108-1.el9_8
AlmaLinux · 9 dotnet-sdk-aot-10.0 10.0.108-1.el9_8
AlmaLinux · 9 dotnet-sdk-dbg-10.0 10.0.108-1.el9_8
AlmaLinux · 9 dotnet-targeting-pack-10.0 10.0.8-1.el9_8
AlmaLinux · 9 dotnet-templates-10.0 10.0.108-1.el9_8

Vulnerabilities 1

References

  • report
    https://access.redhat.com/security/cve/CVE-2026-42899
  • report
    https://bugzilla.redhat.com/2476605
  • advisory
    https://errata.almalinux.org/9/ALSA-2026-21297.html