GHSA-j6cv-3w8p-vrg8
KubeVirt's authorization mechanism improperly truncates subresource names
At a glance
- Published
- Updated
- CVE
- CVE-2026-6383
- Aliases
- GO-2026-5450
- CVSS_V3
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Description
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.
Affected packages
| Package | Versions |
|---|---|
| Go · kubevirt.io/kubevirt | introduced 0, last affected 1.8.1 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-6383 ADVISORY
- https://github.com/kubevirt/kubevirt/issues/17337 WEB
- https://access.redhat.com/security/cve/CVE-2026-6383 WEB
- https://bugzilla.redhat.com/show_bug.cgi?id=2458741 WEB
- https://github.com/kubevirt/kubevirt PACKAGE
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — GitHub Advisory Database |