Authorization Issue in Containerized-Data-Importer by KubeVirt
CVE-2026-17527

7.7HIGH

Key Information:

Vendor

Red Hat
Status
Red Hat Openshift Virtualization 4
Vendor
CVE Published:
27 July 2026

What is CVE-2026-17527?

An authorization flaw exists in the containerized-data-importer (CDI) where the 'cdi.kubevirt.io:view' ClusterRole provides unintended permissions. Users or service accounts assigned to this role can clone the contents of any Persistent Volume Claim (PVC), given they also have basic write access within a namespace. This undermines the intended read-only access and allows for potential data exfiltration from PVCs to any namespace the user controls, bypassing established namespace isolation mechanisms.

References

https://access.redhat.com/security/cve/CVE-2026-17527
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2507413
issue-trackingx_refsource_REDHAT

CVSS V3.1

Score:
7.7
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.