Описание
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.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat OpenShift Virtualization 4 | container-native-virtualization/virt-exportserver | Affected | ||
| Red Hat Container Native Virtualization 4.17 | container-native-virtualization/virt-exportserver-rhel9 | Fixed | RHSA-2026:28002 | 22.06.2026 |
| Red Hat Container Native Virtualization 4.18 | container-native-virtualization/virt-exportserver-rhel9 | Fixed | RHSA-2026:27913 | 22.06.2026 |
| Red Hat Container Native Virtualization 4.19 | container-native-virtualization/virt-exportserver-rhel9 | Fixed | RHSA-2026:27914 | 22.06.2026 |
| Red Hat Container Native Virtualization 4.20 | container-native-virtualization/virt-exportserver-rhel9 | Fixed | RHSA-2026:27983 | 22.06.2026 |
| Red Hat Container Native Virtualization 4.21 | container-native-virtualization/virt-exportserver-rhel9 | Fixed | RHSA-2026:27903 | 22.06.2026 |
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Дополнительная информация
Статус:
7.7 High
CVSS3
Связанные уязвимости
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.
Kubevirt: kubevirt: vmexport directory symlink escape enables exporter pod file read
7.7 High
CVSS3