CVE-2026-9804

HIGH

Kubevirt: kubevirt: vmexport directory symlink escape enables exporter pod file read

Title source: cna
STIX 2.1

Description

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.

References (2)

Core 2
Core References
Vdb Entry, X_Refsource_Redhat vdb-entry x_refsource_redhat
https://access.redhat.com/security/cve/CVE-2026-9804
Issue Tracking, X_Refsource_Redhat issue-tracking x_refsource_redhat
RHBZ#2482487
https://bugzilla.redhat.com/show_bug.cgi?id=2482487

Scores

CVSS v3 7.7
EPSS 0.0042
EPSS Percentile 33.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-59
Status published
Products (1)
Red Hat/Red Hat OpenShift Virtualization 4
Published May 28, 2026
Tracked Since May 28, 2026