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High RLSA-2026:68233 2 CVEs

Important: .NET 9.0 security, bug fix, and enhancement update

Published Sep 17, 2026 · Updated Sep 17, 2026

Summary

.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: 9.0.121
Runtime version: 9.0.20

Security Fix(es):

* dotnet10.0: dotnet9.0: dotnet8.0: .NET Information Disclosure Vulnerability (CVE-2026-58649)

* dotnet10.0: dotnet9.0: .NET Elevation of Privilege Vulnerability (CVE-2026-69806)

Bug Fix(es) and Enhancement(s):

* Update .NET 9.0 to SDK 9.0.121 and Runtime 9.0.20 (JIRA:Rocky Linux-252274)

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 1

ReleasePackageFixed in
Rocky Linux · 8 dotnet9.0 0:9.0.121-1.el8_10

Vulnerabilities 2

References

  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2528870
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2528921
  • advisory
    https://access.redhat.com/errata/RHSA-2026:68233