Red HatCVE-2026-63623
Red Hat libvirt: information disclosure
Medium5.5CVE-2026-63623 · Published Aug 10, 2026 · updated Aug 14, 2026
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.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| Red Hat Enterprise Linux 10 Product | all versions | No fix yet |
| Red Hat Enterprise Linux 6 Product | all versions | No fix yet |
| Red Hat Enterprise Linux 7 Product | all versions | No fix yet |
| Red Hat Enterprise Linux 8 Product | all versions | No fix yet |
| Red Hat Enterprise Linux 9 Product | all versions | No fix yet |
| Red Hat Enterprise Linux for NVIDIA 26 Product | all versions | No fix yet |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-732
More Red Hat advisories
All Red Hat| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Aug 10 | Red Hat QEMU: memory corruption | Medium4.4 | No fix yet |
| Aug 10 | Red Hat Enterprise Linux: denial of service | Low3.9 | No fix yet |
| Aug 10 | Red Hat Enterprise Linux 10: privilege escalation | High7.8 | No fix yet |
| Aug 10 | Red Hat OpenShift AI (RHOAI): denial of service | High8.5 | No fix yet |
| Aug 10 | Red Hat OpenShift AI (RHOAI): remote code execution | Critical9.9 | No fix yet |
| Aug 10 | Red Hat OpenShift AI (RHOAI): privilege escalation | High8.8 | No fix yet |