CVE-2025-64324: kubevirt Information Disclosure

Description

KubeVirt is a virtual machine management add-on for Kubernetes. The `hostDisk` feature in KubeVirt allows mounting a host file or directory owned by the user with UID 107 into a VM. However, prior to version 1.6.1 and 1.7.0, the implementation of this feature and more specifically the `DiskOrCreate` option (which creates a file if it doesn't exist) has a logic bug that allows an attacker to read and write arbitrary files owned by more privileged users on the host system. Versions 1.6.1 and 1.7.0 fix the issue.

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CVSS v3.1 Score

7.7

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Weakness Type (CWE)

CWE-200 CWE-200

CWE-732 CWE-732

Affected Products

Vendor	Product	Versions
kubevirt	kubevirt	< 1.6.1
kubevirt	kubevirt	All
kubevirt	kubevirt	All

References

Advisories & Patches

https://github.com/kubevirt/kubevirt/commit/00d03e43e3bf03e563136695a4732b65ed42d764 https://github.com/kubevirt/kubevirt/commit/ff3b69b08b6b9c8d08d23735ca8d82455f790a69 https://github.com/kubevirt/kubevirt/security/advisories/GHSA-46xp-26xh-hpqh

Exploits

https://github.com/kubevirt/kubevirt/security/advisories/GHSA-46xp-26xh-hpqh

Other References

https://github.com/kubevirt/kubevirt/pull/15037

Frequently Asked Questions

What is CVE-2025-64324? +

KubeVirt is a virtual machine management add-on for Kubernetes. The `hostDisk` feature in KubeVirt allows mounting a host file or directory owned by the user with UID 107 into a VM. However, prior to version 1.6.1 and 1.7.0, the implementation of this feature and more specifically the `DiskOrCreate` option (which creates a file if it doesn't exist) has a logic bug that allows an attacker to read and write arbitrary files owned by more privileged users on the host system. Versions 1.6.1 and 1.7.0 fix the issue. It has a CVSS v3.1 base score of 7.7 (HIGH).

How severe is CVE-2025-64324? +

CVE-2025-64324 has a CVSS v3.1 score of 7.7 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-64324? +

CVE-2025-64324 affects products from kubevirt, specifically: kubevirt. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-64324? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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