Log in Start free

Vulnerability · Published Jul 27, 2026 · Assigned by redhat

CVE-2026-17527Virt-cdi-operator: containerized-data-importer: cdi.kubevirt.io:view aggregated clusterrole grants create on datavolumes/source, allowing unauthorized pvc clone

High 7.7

In plain English

A high-severity authorization bypass via user-controlled key in Red Hat Container Native Virtualization 4.14 from Red Hat. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 48% of all known vulnerabilities).

Severity (CVSS 3.1)7.7High
Exploit odds (30 days)0.6%top 52.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

VendorProductVersions
Red Hat Red Hat Container Native Virtualization 4.14 see references
Red Hat Red Hat Container Native Virtualization 4.16 see references
Red Hat Red Hat Container Native Virtualization 4.17 see references
Red Hat Red Hat Container Native Virtualization 4.18 see references
Red Hat Red Hat Container Native Virtualization 4.19 see references
Red Hat Red Hat Container Native Virtualization 4.20 see references
Red Hat Red Hat Container Native Virtualization 4.21 see references
Red Hat Red Hat Container Native Virtualization 4.22 see references
Red Hat Red Hat OpenShift Virtualization 4 see references

Weakness: CWE-639 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

References