Security Advisory

CVE-2026-63125

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-08-21 14:49:16

Last updated 2026-08-21 15:02:55

Assigner GitHub_M

CVSS score 9.9

State PUBLISHED

Description

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.

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