RHSA-2026:66542: High severity Red Hat Red Hat Enterprise Linux for x86_64 - Extended Update Support vulnerability
Published Sep 10, 2026
·Updated
Important: nginx security update
Affected Software
24 affected components
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for IBM z Systems - 4 years of updates
Red Hat Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
Red Hat Red Hat CodeReady Linux Builder for IBM z Systems - Extended Update Support
Red Hat Red Hat Enterprise Linux for x86_64
Red Hat Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat Red Hat Enterprise Linux for ARM 64
Red Hat Red Hat CodeReady Linux Builder for IBM z Systems
Red Hat Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support
Red Hat Red Hat CodeReady Linux Builder for x86_64
Red Hat Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support
Red Hat Red Hat Enterprise Linux for ARM 64 - 4 years of updates
Red Hat Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support
Red Hat Red Hat Enterprise Linux for Power, little endian
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 x86_64 - Update Services for SAP Solutions
Red Hat Red Hat Enterprise Linux for IBM z Systems
Red Hat Red Hat CodeReady Linux Builder for Power, little endian
Red Hat Red Hat CodeReady Linux Builder for ARM 64
Event History
Sep 10, 2026
Advisory Published
via Red Hat·07:48 PM
Data Sourced
via Red Hat·07:48 PM
DescriptionSeverityAffected Software
Frequently Asked Questions
1
Which environments are in scope for this update?
The advisory applies to listed Red Hat Enterprise Linux offerings across x86_64, IBM z Systems, Power little endian, and ARM 64, including specified Extended Update Support, Extended Life Cycle, SAP Solutions, and CodeReady Linux Builder variants.
2
Does the supplied advisory data identify the affected nginx versions or fixed package versions?
No. The supplied data does not include affected nginx versions, fixed package versions, or CVE identifiers.
3
Can exposure or exploitability be determined from the supplied information?
No. The data labels the update as high severity with risk 33, but does not provide attack prerequisites, configuration conditions, or indicators for determining whether a system has been exploited.