Incorrect Authorization Affecting kubevirt package, versions *


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.15% (5th percentile)

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  • Snyk IDSNYK-RHEL10-KUBEVIRT-16087569
  • published16 Apr 2026
  • disclosed15 Apr 2026

Introduced: 15 Apr 2026

CVE-2026-6383  (opens in a new tab)
CWE-863  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:10 kubevirt.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kubevirt package and not the kubevirt package as distributed by RHEL. See How to fix? for RHEL:10 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1