Linux · Security advisory · August 19, 2026

RHSA-2026:55856: Security update for 14 packages

RHSA-2026:55856, released August 19, 2026, fixes 4 CVEs across 14 products. None of them is reported as exploited. Patch Radar priority: High.

High
CVEs closed
4
None rated Critical
Exploited
0
None reported
Exploitation more likely
0
Vendor assessment
Highest EPSS
0.0123
69th percentile

Priority of the 4 CVEs

Patch now 0 Urgent 0 High 4 Routine 0

Fixed package versions

ProductReleaseFixed in
aspnetcore-runtime-9.0RHEL 90:9.0.19-1.el9_8
aspnetcore-runtime-dbg-9.0RHEL 90:9.0.19-1.el9_8
aspnetcore-targeting-pack-9.0RHEL 90:9.0.19-1.el9_8
dotnet-apphost-pack-9.0RHEL 90:9.0.19-1.el9_8
dotnet-hostfxr-9.0RHEL 90:9.0.19-1.el9_8
dotnet-runtime-9.0RHEL 90:9.0.19-1.el9_8
dotnet-runtime-dbg-9.0RHEL 90:9.0.19-1.el9_8
dotnet-sdk-9.0RHEL 90:9.0.120-1.el9_8
dotnet-sdk-9.0-source-built-artifactsRHEL 90:9.0.120-1.el9_8
dotnet-sdk-aot-9.0RHEL 90:9.0.120-1.el9_8
dotnet-sdk-dbg-9.0RHEL 90:9.0.120-1.el9_8
dotnet-targeting-pack-9.0RHEL 90:9.0.19-1.el9_8
dotnet-templates-9.0RHEL 90:9.0.120-1.el9_8
netstandard-targeting-pack-2.1RHEL 90:9.0.120-1.el9_8

CVEs this fix closes

PriorityCVETitleImpactCVSSEPSSExploitation
High CVE-2026-62901 .NET Denial of Service Vulnerability 7.8 0.0123 Exploitation Less Likely
High CVE-2026-62899 .NET Security Feature Bypass Vulnerability 7.8 0.0075 Exploitation Less Likely
High CVE-2026-62900 .NET Information Disclosure Vulnerability 7.8 0.0075 Exploitation Less Likely
High CVE-2026-62909 .NET Elevation of Privilege Vulnerability 7.8 0.0034 Exploitation Unlikely
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