RHSA-2026:90913: High severity Red Hat Red Hat Enterprise Linux for Power, little endian vulnerability
Published Oct 27, 2026
·Updated
Important: thunderbird security update
Affected Software
8 affected components
Red Hat Red Hat Enterprise Linux for Power, little endian
Red Hat Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for ARM 64
Red Hat Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for IBM z Systems
Red Hat Red Hat Enterprise Linux for x86_64
Event History
Oct 27, 2026
Advisory Published
via Red Hat·12:52 PM
Data Sourced
via Red Hat·12:52 PM
DescriptionSeverityAffected Software
Frequently Asked Questions
1
Which systems are in scope for this update?
The advisory applies to Red Hat Enterprise Linux on x86_64, ARM 64, IBM z Systems, and Power little endian, including the listed Extended Life Cycle variants.
2
Does the available information identify the affected Thunderbird version or a workaround?
No. The provided information identifies this as an important Thunderbird security update but does not include affected or fixed package versions, vulnerability details, or mitigations for systems that cannot yet be updated.