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GHSA-mpmf-3w4r-qfpf

KubeVirt has a Link Following issue

Source: GitHub Advisory Database (reviewed) High CVE-2026-9804

Packages

EcosystemPackageAffectedFixed in
Go kubevirt.io/kubevirt <= 1.9.0-beta.0 no fix listed

Details

As written in the advisory (Markdown source, shown as plain text).

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

External links from the advisory. They lead to third-party sites.