CVE-2026-62867 Incus has an argument injection in storage volume block.create_options that leads to arbitrary command execution
A project-scoped user can inject arguments into storage volume creation commands, leading to arbitrary code execution as root.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-62867?
CVE-2026-62867 is a critical command injection vulnerability in lxc incus, published on 21 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-88
Which versions are affected by CVE-2026-62867?
How do I fix CVE-2026-62867?
Upgrade to a fixed version.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-62867 being exploited?
There is no known exploitation of CVE-2026-62867 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-62867, GHSA-q7xw-r4w2-2wcm, UBUNTU-CVE-2026-62867.