RHSA-2026:99749: High severity Red Hat Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle vulnerability
Published Nov 12, 2026
·Updated
Important: thunderbird security, bug fix, and enhancement update
Affected Software
9 affected components
Red Hat Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for IBM z Systems - 4 years of updates
Red Hat Red Hat Enterprise Linux Server - AUS
Red Hat Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for ARM 64 - 4 years of updates
Red Hat Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions
Red Hat Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
Red Hat Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle
Event History
Nov 12, 2026
Advisory Published
via Red Hat·05:06 PM
Data Sourced
via Red Hat·05:06 PM
DescriptionSeverityAffected Software
Frequently Asked Questions
1
Which systems are covered by this update?
The advisory applies to the listed Red Hat Enterprise Linux offerings for IBM z Systems, ARM 64, x86_64, and Power LE, including Extended Life Cycle, 4 years of updates, AUS, and Update Services for SAP Solutions variants.
2
What type of update is this?
This is an Important-rated Thunderbird update that includes security fixes, bug fixes, and enhancements.