VDB
CVE-2026-63125
CVE-2026-63125
PUBLISHED
CVSS 9.9 CRITICAL
Reported by GitHub_M · Published August 21, 2026
Incus is a system container and virtual machine manager. Prior to version 7.3.0, an unprivileged, project-confined Incus user (a non-admin TLS/RBAC identity with `can_create_images` and `can_create_instances`) can execute arbitrary code as root on the host. A crafted image ships `backup.yaml` as a symlink to a host file. When the root daemon writes the instance's backup file, it follows the symlink. Version 7.3.0 patches the issue.
Risk Scores
CVSS 3.1
9.9
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| lxc | incus | < 7.3.0 |
| alpine | incus-feature | 0, 0, 0 |
| lxc | incus | < 7.3.0 |
Timeline
- Aug 21, 2026 CVE Published
- Aug 24, 2026 EPSS Score
- Aug 26, 2026 EPSS Score
- Aug 30, 2026 EPSS Score
- Sep 3, 2026 EPSS Score
- Sep 3, 2026 Security Advisory
- Sep 6, 2026 EPSS Score
- Sep 9, 2026 EPSS Score
- Sep 12, 2026 EPSS Score
- Sep 16, 2026 EPSS Score
- Sep 18, 2026 EPSS Score
- Sep 18, 2026 CVE Updated
References
- https://github.com/lxc/incus/security/advisories/GHSA-6rqx-22hc-qm36 x_refsource_CONFIRM