Critical [CVE-2026-48751] Incus has a restricted project bypass leading to arbitrary command execution
This critical-severity Red Hat Linux advisory covers CVE-2026-48751.
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Summary
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. Instance snapshots do not enforce container restriction settings, allowing a user to execute arbitrary commands on the server through lowlevel hooks.
Incus is not shipped in any Red Hat product. The community Fedora package is affected.
Red Hat severity: Critical — CVSS 9.9 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H). Weakness: CWE-863.
- < 7.2.0
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
Mitigation checklist
- No mitigation is needed as Incus is not shipped in any Red Hat product.
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
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