cvedb.io
CVE-2026-63623
MEDIUM · CVSS 5.5
EPSS exploitation probability: 0%
Published 2026-08-10T17:17:35.413 · Last modified 2026-08-10T17:17:35.413

Summary

A flaw was found in libvirt. During storage volume clone or convert operations, newly created volume images were temporarily world-readable. This was caused by the `qemu-img` utility running with overly permissive file creation settings, allowing any local user to read the full guest disk contents. This vulnerability could lead to sensitive information disclosure from guest virtual machines.

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References

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