CVE-2026-48751 Incus has a restricted project bypass leading to arbitrary command execution
Attackers can bypass restricted project settings to execute arbitrary commands on the Incus server via lowlevel hooks.
- 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-2026-48751?
CVE-2026-48751 is a critical 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 7.2.0, instance snapshots ignore the `restricted.containers.lowlevel=block` setting; allowing for arbitrary command execution on the Incus server by abusing lowlevel hooks such as `raw.lxc` and `raw.qemu`. Version 7.2.0 patches the issue.
Weakness: CWE-862
Which versions are affected by CVE-2026-48751?
5 open source packages ship an affected version, including github.com/lxc/incus/v7/cmd/incusd, github.com/lxc/incus and github.com/lxc/incus/v6.
| Package | Affected | Fixed in |
|---|---|---|
github.com/lxc/incus/v7/cmd/incusd Go | All versions | 7.2.0 |
github.com/lxc/incus/v7/cmd/incusd Go | All versions | 7.2.0 |
github.com/lxc/incus Go | All versions | None |
github.com/lxc/incus/v6 Go | All versions | None |
github.com/lxc/incus/v7 Go | All versions | 7.2.0 |
How do I fix CVE-2026-48751?
Upgrade github.com/lxc/incus/v7/cmd/incusd to 7.2.0 or later.
Is CVE-2026-48751 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-48751 exists.
Sources
Also known as DEBIAN-CVE-2026-48751, GHSA-48q5-w887-33wv, GO-2026-5799, UBUNTU-CVE-2026-48751.