CVE-2026-9804

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

HIGH
7.7
CVSS Score
Published: May 28, 2026 at 08:15 AM UTC
Updated: October 26, 2026 at 11:10 AM UTC
1 product affected across 1 vendorOpenShift Virtualization

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Severity
HIGH7.7
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

All versions4
Vendor states this is fixed in 1781590993 (unaffected)
Vendor states this is fixed in 1781757410 (unaffected)
Vendor states this is fixed in 1781838712 (unaffected)
Vendor states this is fixed in 1781928221 (unaffected)
Vendor states this is fixed in 1782012918 (unaffected)

References (8)

VDB Entryx_refsource_REDHAT
Source: cverecord
https://access.redhat.com/security/cve/CVE-2026-9804
Issue Trackingx_refsource_REDHAT
Source: cverecord
https://bugzilla.redhat.com/show_bug.cgi?id=2482487
Vendor Advisoryx_refsource_REDHAT
Source: cverecord
https://access.redhat.com/errata/RHSA-2026:27914
Vendor Advisoryx_refsource_REDHAT
Source: cverecord
https://access.redhat.com/errata/RHSA-2026:27983
Vendor Advisoryx_refsource_REDHAT
Source: cverecord
https://access.redhat.com/errata/RHSA-2026:28002
Vendor Advisoryx_refsource_REDHAT
Source: cverecord
https://access.redhat.com/errata/RHSA-2026:27903
Vendor Advisoryx_refsource_REDHAT
Source: cverecord
https://access.redhat.com/errata/RHSA-2026:27913

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.7HIGHredhat
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-59

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