RHSA-2026:90518: High severity Red Hat Red Hat Enterprise Linux for x86_64 - Extended Life Cycle vulnerability
Published Oct 26, 2026
·Updated
Important: ignition security update
Affected Software
9 affected components
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 IBM z Systems - Extended Life Cycle
Red Hat Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
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 Power, little endian - 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
Event History
Oct 26, 2026
Advisory Published
via Red Hat·11:40 PM
Data Sourced
via Red Hat·11:40 PM
DescriptionSeverityAffected Software
Frequently Asked Questions
1
Which environments should be prioritized for review?
Prioritize systems running the listed Red Hat Enterprise Linux offerings for x86_64, IBM z Systems, Power little endian, ARM 64, Power LE with SAP Update Services, or RHEL Server AUS. The advisory is rated high severity and covers an ignition security update.
2
What information is available to determine exploit prerequisites or mitigations?
The provided advisory metadata does not state attacker access requirements, affected configurations, detection methods, or compensating controls. Review the referenced Red Hat erratum for those details before making exposure or mitigation decisions.