RHSA-2026:55858: High severity Red Hat Red Hat Enterprise Linux for Power, little endian - Extended Update Support vulnerability
Published Aug 17, 2026
·Updated
Important: .NET 10.0 security, bug fix, and enhancement update
Affected Software
24 affected components
Red Hat Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Red Hat Enterprise Linux for x86_64 - 4 years of updates
Red Hat Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support
Red Hat Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Red Hat Enterprise Linux for IBM z Systems
Red Hat Red Hat CodeReady Linux Builder for x86_64
Red Hat Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Red Hat CodeReady Linux Builder for IBM z Systems
Red Hat Red Hat CodeReady Linux Builder for IBM z Systems - Extended Update Support
Red Hat Red Hat Enterprise Linux for ARM 64 - 4 years of updates
Red Hat Red Hat Enterprise Linux for ARM 64
Red Hat Red Hat Enterprise Linux for Power, little endian
Red Hat Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for IBM z Systems - 4 years of updates
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Life Cycle
Red Hat Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support
Red Hat Red Hat CodeReady Linux Builder for ARM 64
Red Hat Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle
Red Hat Red Hat CodeReady Linux Builder for Power, little endian
Red Hat Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support
Red Hat Red Hat Enterprise Linux for Power, little endian - 4 years of support
Red Hat Red Hat Enterprise Linux for x86_64
Event History
Aug 17, 2026
Advisory Published
via Red Hat·07:36 PM
Data Sourced
via Red Hat·07:36 PM
DescriptionSeverityAffected Software
Frequently Asked Questions
1
What is the severity of RHSA-2026:55858?
The severity of RHSA-2026:55858 is classified as high with a score of 7.
2
How do I fix RHSA-2026:55858?
To fix RHSA-2026:55858, apply the relevant updates provided by Red Hat for your specific architecture.
3
What does RHSA-2026:55858 address?
RHSA-2026:55858 addresses important security vulnerabilities, bug fixes, and enhancements related to .NET 10.0.
4
Which software is affected by RHSA-2026:55858?
RHSA-2026:55858 affects several Red Hat Enterprise Linux variants including x86_64, ARM 64, and IBM z Systems.
5
When was RHSA-2026:55858 published?
RHSA-2026:55858 was published on August 17, 2026.