RHSA-2026:91958: High severity Red Hat Red Hat Enterprise Linux Server - AUS vulnerability
Important: osbuild-composer security update
Affected Software
Event History
Frequently Asked Questions
Which environments are covered by this update?
The update applies to the listed Red Hat Enterprise Linux Server AUS, ARM 64, IBM z Systems, Power little endian, x86_64 Extended Life Cycle, and Power LE SAP Update Services offerings. The affected offerings include both Extended Life Cycle and selected four-years-of-updates subscriptions.
What should teams do to remediate this issue?
Apply the RHSA-2026:91958 osbuild-composer security update through the applicable Red Hat Enterprise Linux software channel. The provided data does not identify affected or fixed package versions, so use the referenced erratum to determine the update available for each enabled repository.
Is there a documented workaround if the update cannot be installed immediately?
No workaround or compensating control is provided in the available advisory data. Prioritize applying the security update, which is classified as Important with high severity.