CVE-2026-6383
Kubevirt: kubevirt: unauthorized subresource access due to improper rbac evaluation
CVSS Score
5.4
EPSS Score
0.0%
EPSS Percentile
0th
A flaw was found in KubeVirt's Role-Based Access Control (RBAC) evaluation logic. The authorization mechanism improperly truncates subresource names, leading to incorrect permission evaluations. This allows authenticated users with specific custom roles to gain unauthorized access to subresources, potentially disclosing sensitive information or performing actions they are not permitted to do. Additionally, legitimate users may be denied access to resources.
| CWE | CWE-863 |
| Vendor | red hat |
| Product | red hat openshift virtualization 4 |
| Published | Apr 15, 2026 |
| Last Updated | Apr 15, 2026 |
Stay Ahead of the Next One
Get instant alerts for red hat red hat openshift virtualization 4
Be the first to know when new medium vulnerabilities affecting red hat red hat openshift virtualization 4 are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None
Affected Versions
Red Hat / Red Hat OpenShift Virtualization 4
All versions affected