Copyright © 2012 Red Hat, Inc. All rights reserved. Important 2026-05-28T06:00:00 kubevirt: kubevirt: VMExport directory symlink escape enables exporter pod file read 7.7 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N CWE-59

A flaw was found in KubeVirt's virt-exportserver component. An attacker with specific namespace-level access can exploit a path traversal vulnerability in the VMExport directory endpoint. By placing a symbolic link (symlink) within an exported filesystem Persistent Volume Claim (PVC) that points outside its designated mount root, the attacker can read arbitrary files from the exporter pod's filesystem. This leads to information disclosure, potentially exposing sensitive data.

A flaw was found in KubeVirt's virt-exportserver component. An attacker with specific namespace-level access can exploit a path traversal vulnerability in the VMExport directory endpoint. By placing a symbolic link (symlink) within an exported filesystem Persistent Volume Claim (PVC) that points outside its designated mount root, the attacker can read arbitrary files from the exporter pod's filesystem. This leads to information disclosure, potentially exposing sensitive data.

Red Hat would like to thank Thai Son Dinh, GitHub: @sondt99 (VinSOC) for reporting this issue. Red Hat OpenShift Virtualization 4 Affected container-native-virtualization/virt-exportserver Red Hat OpenShift Virtualization 4 Affected container-native-virtualization/virt-exportserver-rhel9 https://www.cve.org/CVERecord?id=CVE-2026-9804 https://nvd.nist.gov/vuln/detail/CVE-2026-9804