RHSA-2026:86633: High severity Red Hat Red Hat Enterprise Linux for Power, little endian - 4 years of support vulnerability
Published Oct 21, 2026
·Updated
Important: sudo security update
Affected Software
8 affected components
Red Hat Red Hat Enterprise Linux for Power, little endian - 4 years of support
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Red Hat Enterprise Linux for IBM z Systems - 4 years of updates
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 ARM 64 - 4 years of updates
Red Hat Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Event History
Oct 21, 2026
Advisory Published
via Red Hat·06:25 AM
Data Sourced
via Red Hat·06:25 AM
DescriptionSeverityAffected Software
Frequently Asked Questions
1
Which Red Hat Enterprise Linux deployments are covered?
The advisory covers RHEL for x86_64, ARM 64, IBM z Systems, and Power little endian. It applies to both 4-years-of-updates/support and Extended Update Support offerings listed for those architectures.
2
How is this update classified for triage?
It is classified as Important and has a high severity rating of 7. The provided risk value is 33.
3
When was the advisory published and last modified?
It was published on 2026-10-21 and was last modified on the same date.