RHSA-2026:88779: Critical severity Red Hat Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) vulnerability
Published Oct 23, 2026
·Updated
Critical: ca-certificates security update
Affected Software
4 affected components
Red Hat Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems)
Red Hat Red Hat Enterprise Linux Server - Extended Life Cycle Support for IBM Power, big endian
Red Hat Red Hat Enterprise Linux Server - Extended Life Cycle Support
Red Hat Red Hat Enterprise Linux Server - Extended Life Cycle Support for IBM Power, little endian
Event History
Oct 23, 2026
Advisory Published
via Red Hat·04:55 PM
Data Sourced
via Red Hat·04:55 PM
DescriptionSeverityAffected Software
Frequently Asked Questions
1
Which systems are in scope for this advisory?
The advisory applies to Red Hat Enterprise Linux Server Extended Life Cycle Support deployments, including standard ELS and ELS for IBM z Systems and IBM Power in both big-endian and little-endian configurations.
2
How urgent is remediation?
The advisory is rated critical with severity 9 and a risk value of 42.