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Vulnerability · Published Aug 21, 2026 · Assigned by GitHub_M

CVE-2026-48751Incus has a restricted project bypass leading to arbitrary command execution

Critical 9.9

In plain English

A critical-severity missing authorization in lxd from canonical. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 53% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)9.9Critical
Exploit odds (30 days)0.7%top 47.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Alpine:v3.24incus7.0.1-r0ALPINE-CVE-2026-48751
Debian:13incus6.0.4-2+deb13u8DEBIAN-CVE-2026-48751
Debian:14incus7.0.0-5DEBIAN-CVE-2026-48751
Debian:12lxdno fix listedDEBIAN-CVE-2026-48751
Debian:13lxd5.0.2+git20231211.1364ae4-9+deb13u7DEBIAN-CVE-2026-48751
Gogithub.com/lxc/incusno fix listedGO-2026-5799
Gogithub.com/lxc/incus/v6no fix listedGO-2026-5799
Gogithub.com/lxc/incus/v77.2.0GO-2026-5799
Gogithub.com/lxc/incus/v7/cmd/incusd7.2.0GHSA-48q5-w887-33wv
Ubuntu:25.10incusno fix listedUBUNTU-CVE-2026-48751
Ubuntu:26.10incusno fix listedUBUNTU-CVE-2026-48751

Affected products (as reported)

VendorProductVersions
lxc incus < 7.2.0
canonical lxd >= 4.12.0, < 5.0.7>= 5.1.0, 5.21.5>= 6.0.0, < 6.9.0

Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

References