RHSA-2026:91138: High severity Red Hat Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle vulnerability
Published Oct 27, 2026
·Updated
Important: yggdrasil security update
Affected Software
24 affected components
Red Hat Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle
Red Hat Red Hat CodeReady Linux Builder for x86_64
Red Hat Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat Red Hat CodeReady Linux Builder for IBM z Systems - Extended Update Support
Red Hat Red Hat Enterprise Linux for Power, little endian
Red Hat Red Hat Enterprise Linux for Power, little endian - 4 years of support
Red Hat Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support
Red Hat Red Hat Enterprise Linux for IBM z Systems - 4 years of updates
Red Hat Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Red Hat Enterprise Linux for IBM z Systems
Red Hat Red Hat Enterprise Linux for x86_64
Red Hat Red Hat CodeReady Linux Builder for Power, little endian
Red Hat Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support
Red Hat Red Hat Enterprise Linux for ARM 64
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Life Cycle
Red Hat Red Hat CodeReady Linux Builder for ARM 64
Red Hat Red Hat Enterprise Linux for x86_64 - 4 years of updates
Red Hat Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle
Red Hat Red Hat CodeReady Linux Builder for IBM z Systems
Red Hat Red Hat Enterprise Linux for ARM 64 - 4 years of updates
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support
Event History
Oct 27, 2026
Advisory Published
via Red Hat·07:56 PM
Data Sourced
via Red Hat·07:56 PM
DescriptionSeverityAffected Software
Frequently Asked Questions
1
Which environments are covered by this update?
The advisory applies to listed Red Hat Enterprise Linux and CodeReady Linux Builder offerings for ARM 64, x86_64, IBM z Systems, and Power little endian, including certain Extended Life Cycle, Extended Update Support, and four-year support/update variants.
2
What is the severity of this update?
The advisory is rated Important and has a high severity rating of 7. The provided data does not identify the underlying vulnerability details or exploitation prerequisites.