CVE-2026-63623
MEDIUM
NVD
CVSS Score
5.5
Severity
MEDIUM
Published
Aug 10, 2026
Vendor
unknown
Description
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.