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    CVE-2026-63125

    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.

    Published:Aug 21, 2026
    Last Modified:Aug 21, 2026
    EPS:Aug 21, 2026
    EPSS Score:
    CVSS Score:9.9

    Affected Products

    Vendor
    Lxc
    Product
    Incus

    Exploits

    No exploit reference

    Related CVEs

    CVE-2026-63343 (CVSS 9.9) — Incus is a system container and virtual machine manager. Prior to version 7.3.0, a malicious image containing …
    CVE-2026-62941 (CVSS 9.9) — Incus is a system container and virtual machine manager. Prior to version 7.3.0, when copying an instance acro…
    CVE-2026-62940 (CVSS 9.9) — Incus is a system container and virtual machine manager. Prior to version 7.3.0, when migrating an instance to…
    CVE-2026-62867 (CVSS 9.9) — Incus is a system container and virtual machine manager. Prior to version 7.3.0, improper validation of user-p…
    CVE-2026-62313 (CVSS 4.3) — Incus is a system container and virtual machine manager. Prior to version 7.3.0, project-level enforcement of …
    CVE-2026-55622 (CVSS 7.7) — Incus is a system container and virtual machine manager. Prior to version 7.2.0, missing authorization checks …
    CVE-2026-55621 (CVSS 7.7) — Incus is a system container and virtual machine manager. Prior to version 7.2.0, missing authorization checks …
    CVE-2026-48769 (CVSS 9.9) — Incus is a system container and virtual machine manager. Prior to version 7.2.0, an arbitrary file write exist…
    CVE-2026-48755 (CVSS 9.9) — Incus is a system container and virtual machine manager. Prior to version 7.1.0, improper validation of user-p…
    CVE-2026-48754 (CVSS 2.1) — Incus is a system container and virtual machine manager. Prior to version 7.1.0, `(*backend).createDependentVo…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High