7.7Hoch
CVE-2026-9804Kubevirt: kubevirt: vmexport directory symlink escape enables exporter pod file read
Beschreibung
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.
Schwachstellentyp (CWE):
CWE-59
Daten: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Wiedergegeben wie in der Quelle, auf Englisch.
Betroffene Produkte und Versionen
| Hersteller | Produkt | Versionen | |
|---|---|---|---|
| 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 |
Referenzen und Patches
- 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