CVE-2026-62867: Lxc Incus

Critical severity, CVSS 9.9. EPSS: 0.5% chance of exploitation in the next 30 days.

Incus is a system container and virtual machine manager. Prior to version 7.3.0, improper validation of user-provided `block.create_options` in storage volume configuration leads to argument injection in the constructed filesystem creation command line. This allows a project-scoped user to inject arbitrary arguments into the binary executed as root. Version 7.3.0 patches the issue.

Affected products

• Lxc Incus: before 7.3.0 (fixed in 7.3.0)

Published 2026-08-21. Last modified 2026-09-18.