7.7Alta
CVE-2026-9804Kubevirt: kubevirt: vmexport directory symlink escape enables exporter pod file read
Descripción
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.
Debilidad (CWE):
CWE-59
Datos: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Se publican tal como los indican las fuentes, en inglés.
Productos y versiones afectados
| Fabricante | Producto | Versiones | |
|---|---|---|---|
| container native virtualization | 4.17 | — | |
| container native virtualization | 4.18 | — | |
| container native virtualization | 4.19 | — | |
| container native virtualization | 4.20 | — | |
| container native virtualization | 4.21 | — | |
| Red Hat | Red Hat Container Native Virtualization 4.17 | all versions | |
| Red Hat | Red Hat Container Native Virtualization 4.18 | all versions | |
| Red Hat | Red Hat Container Native Virtualization 4.19 | all versions | |
| Red Hat | Red Hat Container Native Virtualization 4.20 | all versions | |
| Red Hat | Red Hat Container Native Virtualization 4.21 | all versions | |
| Red Hat | Red Hat OpenShift Virtualization 4 | all versions |
Referencias y parches
- RHSA-2026:27903 vendor-advisory
- RHSA-2026:27913 vendor-advisory
- RHSA-2026:27914 vendor-advisory
- RHSA-2026:27983 vendor-advisory
- RHSA-2026:28002 vendor-advisory
- https://access.redhat.com/security/cve/CVE-2026-9804 vdb-entry
- RHBZ#2482487 issue-tracking
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-9804.json