RHSA-2026:53445: High severity Red Hat Red Hat Enterprise Linux for ARM 64 - Extended Update Support vulnerability
Published Aug 11, 2026
·Updated
Important: thunderbird security update
Affected Software
8 affected components
Red Hat Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Red Hat Enterprise Linux for Power, little endian - 4 years of support
Red Hat Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Red Hat Enterprise Linux for x86_64 - 4 years of updates
Red Hat Red Hat Enterprise Linux for ARM 64 - 4 years of updates
Red Hat Red Hat Enterprise Linux for IBM z Systems - 4 years of updates
Red Hat Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Event History
Aug 11, 2026
Advisory Published
via Red Hat·11:50 AM
Data Sourced
via Red Hat·11:50 AM
DescriptionSeverityAffected Software
Frequently Asked Questions
1
What is the severity of RHSA-2026:53445?
The severity of RHSA-2026:53445 is classified as high with a score of 7.
2
How do I fix RHSA-2026:53445?
To fix RHSA-2026:53445, you should update Thunderbird to the latest version available in your package manager.
3
What software is affected by RHSA-2026:53445?
RHSA-2026:53445 affects multiple Red Hat Enterprise Linux versions, including those for ARM 64, x86_64, Power, and IBM z Systems.
4
When was RHSA-2026:53445 published?
RHSA-2026:53445 was published on August 11, 2026.
5
What does the Thunderbird security update in RHSA-2026:53445 address?
RHSA-2026:53445 addresses important security vulnerabilities in the Thunderbird email client.