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High RLSA-2026:41896 17 CVEs

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

Published Jul 23, 2026 · Updated Jul 23, 2026

Ecosystem: Rocky Linux

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 9.0.119 and .NET Runtime 9.0.18.

Security Fix(es):

* dotnet: SocketsHttpHandler Http2Connection - HTTP/2 SETTINGS/PING ACK flood causing OOM (CVE-2026-50651)

* dotnet: .NET Core: Denial of Service via type confusion (CVE-2026-57108)

* ASP.NET Core: ASP.NET Core: Denial of Service via uncontrolled resource allocation (CVE-2026-56170)

* ASP.NET Core: ASP.NET Core: Privilege Escalation via Incorrect Authentication Algorithm (CVE-2026-47300)

* ASP.NET Core: ASP.NET Core: Privilege Elevation via Authentication Bypass (CVE-2026-47303)

* dotnet: .NET Security Feature Bypass Vulnerability (CVE-2026-47304)

* dotnet: .NET: Denial of Service vulnerability due to uncontrolled resource allocation (CVE-2026-47302)

* dotnet: .NET Framework: Privilege escalation via code injection (CVE-2026-50650)

* dotnet: .NET: Security feature bypass due to incorrect authorization (CVE-2026-50528)

* dotnet: .NET: Local code execution via deserialization of untrusted data (CVE-2026-50649)

* dotnet: .NET: Local tampering via improper link resolution (CVE-2026-50526)

* dotnet: .NET Framework: Local Code Execution via Protection Mechanism Failure (CVE-2026-50646)

* dotnet: .NET: Denial of Service due to uncontrolled resource allocation (CVE-2026-50525)

* dotnet: .NET Framework: Denial of Service via network-based buffer overflow (CVE-2026-50527)

* dotnet: .NET Framework: Remote Denial of Service due to uncontrolled resource allocation (CVE-2026-50648)

* .NET: .NET: Network Spoofing Vulnerability (CVE-2026-50659)

* dotnet: .NET Framework: Denial of Service via improper input validation (CVE-2026-50524)

Bug Fix(es) and Enhancement(s):

* Update .NET 9.0 to SDK 9.0.119 and Runtime 9.0.18 [rhel-9.8.z] (JIRA:Rocky Linux-192472)

* dotnet9.0: Reduce time to detect hanging builds during .NET RPM builds (c9s) [rhel-9.8.z] (JIRA:Rocky Linux-192338)

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 · 9 dotnet9.0 0:9.0.119-1.el9_8

Vulnerabilities 17

References

  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2499217
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2500109
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2500189
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2500492
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2500502
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2500509
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2500515
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2500556
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2500562
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2500563
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2500565
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2500577
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2500580
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2500581
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2500587
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2500589
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2500593