Linux · Red Hat · Security advisory · October 21, 2026

RHSA-2026:86169: Security update for 12 packages

RHSA-2026:86169, released October 21, 2026, fixes 25 CVEs across 12 products. None of them is reported as exploited. Patch Radar priority: Urgent.

Urgent1 publicly disclosed
CVEs closed
25
2 rated Critical
Exploited
0
None reported
Highest CVSS
9.4
Base score, 0 to 10
Highest EPSS
0.0125
69th percentile

Priority of the 25 CVEs

Patch now 0 Urgent 2 High 23 Routine 0

Fixed package versions

ProductReleaseFixed in
aspnetcore-runtime-8.0RHEL 90:8.0.32-1.el9_8
aspnetcore-runtime-dbg-8.0RHEL 90:8.0.32-1.el9_8
aspnetcore-targeting-pack-8.0RHEL 90:8.0.32-1.el9_8
dotnet-apphost-pack-8.0RHEL 90:8.0.32-1.el9_8
dotnet-hostfxr-8.0RHEL 90:8.0.32-1.el9_8
dotnet-runtime-8.0RHEL 90:8.0.32-1.el9_8
dotnet-runtime-dbg-8.0RHEL 90:8.0.32-1.el9_8
dotnet-sdk-8.0RHEL 90:8.0.132-1.el9_8
dotnet-sdk-8.0-source-built-artifactsRHEL 90:8.0.132-1.el9_8
dotnet-sdk-dbg-8.0RHEL 90:8.0.132-1.el9_8
dotnet-targeting-pack-8.0RHEL 90:8.0.32-1.el9_8
dotnet-templates-8.0RHEL 90:8.0.132-1.el9_8

CVEs this fix closes

PriorityCVETitleCVSSEPSSExploitation
Urgent CVE-2026-92707 MessagePack-CSharp Denial of Service Vulnerability9.4 0.0068 DisclosedExploitation Less Likely
Urgent CVE-2026-96222 Active Directory Federation Services (AD FS) Spoofing Vulnerability9.4 0.0059 Exploitation Less Likely
High CVE-2026-58280 .NET Denial of Service Vulnerability9.4 0.0125 Exploitation Less Likely
High CVE-2026-69651 .NET Denial of Service Vulnerability9.4 0.0125 Exploitation Less Likely
High CVE-2026-70159 ASP.NET Core Denial of Service Vulnerability9.4 0.0123 Exploitation Less Likely
High CVE-2026-70181 ASP.NET Core Denial of Service Vulnerability9.4 0.0123 Exploitation Less Likely
High CVE-2026-96958 .NET Denial of Service Vulnerability7.5 0.0120 Exploitation Less Likely
High CVE-2026-96960 .NET Denial of Service Vulnerability7.5 0.0120 Exploitation Less Likely
High CVE-2026-96236 ASP.NET Core Denial of Service Vulnerability9.4 0.0109 Exploitation Less Likely
High CVE-2026-96233 ASP.NET Core Denial of Service Vulnerability9.4 0.0099 Exploitation Unlikely
High CVE-2026-84008 .NET Denial of Service Vulnerability7.5 0.0099 Exploitation Less Likely
High CVE-2026-96959 .NET Denial of Service Vulnerability7.5 0.0097 Exploitation Less Likely
High CVE-2026-70186 ASP.NET Core Denial of Service Vulnerability9.4 0.0096 Exploitation Less Likely
High CVE-2026-96230 ASP.NET Core Remote Code Execution Vulnerability9.4 0.0095 Exploitation Less Likely
High CVE-2026-70188 ASP.NET Core Security Feature Bypass Vulnerability9.4 0.0094 Exploitation Less Likely
High CVE-2026-88092 ASP.NET Core Tampering Vulnerability9.4 0.0093 Exploitation Less Likely
High CVE-2026-70196 ASP.NET Core Denial of Service Vulnerability9.4 0.0091 Exploitation Less Likely
High CVE-2026-66822 .NET Information Disclosure Vulnerability9.4 0.0079 Exploitation Less Likely
High CVE-2026-70175 ASP.NET Core Elevation of Privilege Vulnerability9.4 0.0073 Exploitation Less Likely
High CVE-2026-96237 .NET Remote Code Execution Vulnerability9.4 0.0064 Exploitation Less Likely
High CVE-2026-70179 ASP.NET Core Elevation of Privilege Vulnerability9.4 0.0063 Exploitation Less Likely
High CVE-2026-70183 ASP.NET Core Elevation of Privilege Vulnerability9.4 0.0053 Exploitation Less Likely
High CVE-2026-96225 .NET Elevation of Privilege Vulnerability9.4 0.0041 Exploitation Less Likely
High CVE-2026-96231 .NET Elevation of Privilege Vulnerability9.4 0.0041 Exploitation Less Likely
High CVE-2026-96238 .NET Security Feature Bypass Vulnerability9.4 0.0030 Exploitation Less Likely
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