RHSA-2026:80694: High severity Red Hat Red Hat Enterprise Linux for x86_64 vulnerability
Published Oct 12, 2026
·Updated
Important: thunderbird security update
Affected Software
16 affected components
Red Hat Red Hat Enterprise Linux for x86_64
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Life Cycle
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 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 - Update Services for SAP Solutions
Red Hat Red Hat Enterprise Linux for ARM 64 - 4 years of updates
Red Hat Red Hat Enterprise Linux for IBM z Systems
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 Update Support
Red Hat Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for ARM 64
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle
Event History
Oct 12, 2026
Advisory Published
via Red Hat·10:02 AM
Data Sourced
via Red Hat·10:02 AM
DescriptionSeverityAffected Software
Frequently Asked Questions
1
Which systems are covered by this update?
The advisory applies to listed Red Hat Enterprise Linux variants for x86_64, Power little endian, IBM z Systems, and ARM 64, including specified Extended Life Cycle, Extended Update Support, SAP Solutions, and four-year update offerings.
2
What should teams prioritize when triaging this advisory?
This is rated high severity and classified as an Important Thunderbird security update. Teams using Thunderbird on the affected Red Hat Enterprise Linux offerings should review the vendor advisory and prioritize applying the available update.