VULNERABILITY INTELLIGENCE
CVE-2026-63623
CVSS score5.5 MEDIUM
EPSS probability0.10%
CISA KEVNot currently listed
Published2026-08-10
Last modified2026-08-14
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
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.
Weakness classification
- secalert@redhat.com: CWE-732