Incus has a restricted project bypass leading to arbitrary command execution
cve-program · CVE-2026-48751
PublishedIncus 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.
Read the publisher's advisoryeuvd · EUVD-2026-63978
PublishedIncus 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.
Read the publisher's advisorynvd · CVE-2026-48751
PublishedIncus 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.
Read the publisher's advisoryosv · GHSA-48q5-w887-33wv
Published### Summary 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`. ### Details 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`. As snapshots can be moved from one server to another, a malicious instance+snapshot can be crafted locally, moved to a restricted project and the snapshot restored for arbitrary command execution. In practice, this allows a malicious actor to execute arbitrary commands on the host with root privileges. ### PoC ``` # remote, restricted incus project set rem:project restricted.true incus project set rem:project restricted.containers.lowlevel=block # locally, unrestricted project incus init images:debian/trixie rce-raw-lxc incus config set rce-raw-lxc raw.lxc='lxc.hook.pre-start = /bin/sh -c "/bin/id >/lxc-hook-prestart"' incus snapshot create rce-raw-lxc snap0 #> allow transfer to restricted project incus config unset rce-raw-lxc raw.lxc # locally, transfer and trigger incus move rce-raw-lxc rem: --mode push incus snapshot restore rem:rce-raw-lxc snap0 incus start rem:rce-raw-lxc ``` ### Impact - Bypass of project restrictions. - Arbitrary command execution on the Incus server.
Read the publisher's advisoryosv · GO-2026-5799
PublishedIncus has a restricted project bypass leading to arbitrary command execution in github.com/lxc/incus
Read the publisher's advisoryAffected versions, risk and source history
Related advisories and sources
Publishers link these advisories through the identifiers shown below. A shared identifier or date alone does not tell you whether your software is affected or whether the advisories describe the same cause.
CVE-2026-48751 · CVE overview and exploitation status
cve-program · CVE-2026-48751
- https://github.com/lxc/incus/security/advisories/GHSA-48q5-w887-33wv
- https://github.com/canonical/lxd/security/advisories/GHSA-47w9-6r3f-938g
euvd · EUVD-2026-63978
- https://github.com/lxc/incus/security/advisories/GHSA-48q5-w887-33wv
- https://github.com/canonical/lxd/security/advisories/GHSA-47w9-6r3f-938g
nvd · CVE-2026-48751
- https://github.com/canonical/lxd/security/advisories/GHSA-47w9-6r3f-938g
- https://github.com/lxc/incus/security/advisories/GHSA-48q5-w887-33wv
osv · GHSA-48q5-w887-33wv
- https://github.com/canonical/lxd/security/advisories/GHSA-47w9-6r3f-938g
- https://github.com/lxc/incus/security/advisories/GHSA-48q5-w887-33wv
- https://nvd.nist.gov/vuln/detail/CVE-2026-48751
- https://github.com/lxc/incus
osv · GO-2026-5799
Related changes
Linked by CVE identifier- 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 … · Advisory content revised · 7 Nov 2026
- Incus has a restricted project bypass leading to arbitrary command execution · Affected-version evidence changed · 6 Nov 2026
- 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 … · Advisory content revised · 6 Nov 2026
- Incus has a restricted project bypass leading to arbitrary command execution · Advisory content revised · 5 Nov 2026
- Incus has a restricted project bypass leading to arbitrary command execution · Advisory content revised · 5 Nov 2026