CVE-2026-15584 Red Hat CVE debrief

Who should care

OpenShift administrators and users with the standard edit role should be aware of this vulnerability and take immediate action to mitigate the risk. They should review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance. They should also plan vendor-supported updates or mitigations through normal change control where exposure is confirmed.

Technical summary

The incluster-checks tool in OpenShift creates privileged debug pods with host filesystem access in the shared default namespace. This allows any user with the standard edit role to exec into these pods and obtain root access on cluster nodes, potentially leading to a complete compromise of the cluster. The vulnerability has a CVSS score of 7.5 and is considered HIGH severity. The CVE record was published on 2026-07-13T13:16:30.560Z and has not been modified since then. There is limited information available about the vulnerability, and defenders should verify the affected scope and severity with the vendor.

Defensive priority

High

Recommended defensive actions

• Immediately update or restrict access to the incluster-checks tool
• Limit the use of privileged debug pods
• Monitor for suspicious activity in the shared default namespace
• Restrict user access to the standard edit role
• Verify and limit host filesystem access for debug pods
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Track exceptions, retest remediated assets, and close the item only after evidence is documented

Evidence notes

The CVE record was published on 2026-07-13T13:16:30.560Z and has not been modified since then. The NVD entry is currently Received. There is limited information available about the vulnerability, and defenders should verify the affected scope and severity with the vendor. The incluster-checks tool in OpenShift creates privileged debug pods with host filesystem access in the shared default namespace, which could potentially lead to a complete compromise of the cluster if exploited.

Official resources