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CVE-2026-9804

7.7 · HIGH

A flaw was found in KubeVirt's virt-exportserver component.

Published May 28, 2026CWE-59EPSS 0.72%

Overview

CVE-2026-9804 is a high-severity vulnerability. It was published on May 28, 2026 and has a CVSS 3.1 base score of 7.7 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.7, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refaccess.redhat.com/errata/RHSA-2026:27903Refaccess.redhat.com/errata/RHSA-2026:27913Refaccess.redhat.com/errata/RHSA-2026:27914Refaccess.redhat.com/errata/RHSA-2026:27983Refaccess.redhat.com/errata/RHSA-2026:28002Refaccess.redhat.com/security/cve/CVE-2026-9804Refbugzilla.redhat.com/show_bug.cgi?id=2482487Refaccess.redhat.com/errata/RHSA-2026:27903Refaccess.redhat.com/errata/RHSA-2026:27913Refaccess.redhat.com/errata/RHSA-2026:27914

How CyberStrike helps

Frequently asked questions

What is CVE-2026-9804?

CVE-2026-9804 is a high-severity vulnerability. It was published on May 28, 2026 and has a CVSS 3.1 base score of 7.7 (HIGH).

How severe is CVE-2026-9804?

This vulnerability has a CVSS 3.1 base score of 7.7, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-9804?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-9804?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-9804 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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