RHSA-2026:96079: High severity Red Hat Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle vulnerability
Published Nov 9, 2026
·Updated
Important: thunderbird security update
Affected Software
16 affected components
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 IBM z Systems - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Red Hat Enterprise Linux for IBM z Systems
Red Hat Red Hat Enterprise Linux for x86_64 - 4 years of updates
Red Hat Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for ARM 64 - 4 years of updates
Red Hat Red Hat Enterprise Linux for ARM 64
Red Hat Red Hat Enterprise Linux for Power, little endian - 4 years of support
Red Hat Red Hat Enterprise Linux for x86_64
Red Hat Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for IBM z Systems - 4 years of updates
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Update Support
Event History
Nov 9, 2026
Advisory Published
via Red Hat·12:57 AM
Data Sourced
via Red Hat·12:57 AM
DescriptionSeverityAffected Software
Frequently Asked Questions
1
Which environments are covered by this update?
The advisory applies to Red Hat Enterprise Linux deployments on Power little endian, IBM z Systems, ARM 64, and x86_64, including listed Extended Life Cycle, Extended Update Support, and four-years-of-updates offerings.
2
How urgent is remediation?
This is classified as an Important Thunderbird security update with high severity and a risk score of 33. Organizations using Thunderbird in the listed Red Hat Enterprise Linux offerings should prioritize applying the associated vendor update.