CVE-2026-17527

In containerized-data-importer (CDI), the aggregated cdi.kubevirt.io:view ClusterRole, intended to provide read-only access to CDI resources, includes a rule granting create on the datavolumes/source subresource. CDI's DataVolume clone authorization accepts this permission as sufficient to authorize cloning the contents of any PVC the caller can name, without requiring write access to the source namespace. A user or service account bound to the view role, commonly granted cluster-wide via ClusterRoleBinding, who also has ordinary write access (edit/admin) to any single namespace, can use this to exfiltrate the contents of any PVC in the cluster into a namespace they control, bypassing namespace isolation and the read-only guarantee of the view role.

CVSS v3 7.7 HIGH

7.7^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.1 / Impact : 4.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://access.redhat.com/errata/RHSA-2026:59062
https://access.redhat.com/errata/RHSA-2026:59083
https://access.redhat.com/errata/RHSA-2026:59109
https://access.redhat.com/errata/RHSA-2026:60117
https://access.redhat.com/errata/RHSA-2026:60301
https://access.redhat.com/errata/RHSA-2026:61666
https://access.redhat.com/errata/RHSA-2026:62599
https://access.redhat.com/security/cve/CVE-2026-17527
https://bugzilla.redhat.com/show_bug.cgi?id=2507413

Configurations

No configuration.

History

No history.

Information

Published : 2026-07-27 10:16

Updated : 2026-09-08 17:17

NVD link : CVE-2026-17527

Mitre link : CVE-2026-17527

CVE.ORG link : CVE-2026-17527

JSON object : View

Products Affected

No product.

CWE

CWE-639

Authorization Bypass Through User-Controlled Key

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