RHSA-2026:88155: Critical severity Red Hat OpenShift Developer Tools and Services vulnerability
Published Oct 22, 2026
·Updated
Release of Red Hat OpenShift Developer Tools - Openshift Jenkins 4.21 security update.
Affected Software
1 affected component
Red Hat OpenShift Developer Tools and Services
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Red Hat OpenShift Developer Tools - OpenShift Jenkinsto a version that resolves this vulnerability.Fixed in 4.21
Event History
Oct 22, 2026
Advisory Published
via Red Hat·08:48 AM
Data Sourced
via Red Hat·08:48 AM
DescriptionSeverityAffected Software
Frequently Asked Questions
1
Which deployment should be prioritized for review?
Prioritize environments using Red Hat OpenShift Developer Tools and Services with the OpenShift Jenkins 4.21 component.
2
How urgent is remediation?
The advisory is rated critical with a risk score of 42 and severity 9.