RHSA-2026:86621: High severity Red Hat Red Hat Enterprise Linux for x86_64 - 4 years of updates vulnerability
Published Oct 21, 2026
·Updated
Important: dogtag-pki security update
Affected Software
8 affected components
Red Hat Red Hat Enterprise Linux for x86_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
Red Hat Red Hat Enterprise Linux for Power, little endian - 4 years of support
Red Hat Red Hat Enterprise Linux for ARM 64 - 4 years of updates
Red Hat Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Update Support
Event History
Oct 21, 2026
Advisory Published
via Red Hat·06:17 AM
Data Sourced
via Red Hat·06:17 AM
DescriptionSeverityAffected Software
Frequently Asked Questions
1
Which deployment environments should be reviewed for applicability?
Review Red Hat Enterprise Linux deployments on x86_64, IBM z Systems, Power little endian, and ARM 64 that are covered by the listed four-year support, four-year updates, or Extended Update Support offerings.
2
Does the available advisory metadata identify affected package versions or a temporary mitigation?
No. The provided data does not include package versions, fixed versions, or compensating mitigations; it only identifies the advisory and the covered Red Hat Enterprise Linux offerings.