RHSA-2026:91294: High severity Red Hat Red Hat Enterprise Linux for x86_64 vulnerability
Published Oct 27, 2026
·Updated
Important: libXtst security update
Affected Software
8 affected components
Red Hat Red Hat Enterprise Linux for x86_64
Red Hat Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for Power, little endian
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for ARM 64
Red Hat Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for IBM z Systems
Event History
Oct 27, 2026
Advisory Published
via Red Hat·09:14 PM
Data Sourced
via Red Hat·09:14 PM
DescriptionSeverityAffected Software
Frequently Asked Questions
1
Which systems are covered by this update?
The update applies to Red Hat Enterprise Linux on x86_64, ARM 64, IBM z Systems, and little-endian Power. It also covers the Extended Life Cycle variants listed for those architectures.
2
How urgent is remediation?
The advisory is classified as Important and has a high severity rating of 7, with a listed risk of 33. Prioritize applying the available Red Hat security update to affected systems.