Bug 2521007 (CVE-2026-48751)

Summary: CVE-2026-48751 incus: Incus has a restricted project bypass leading to arbitrary command execution
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: urgent Docs Contact:
Priority: urgent    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in Incus, a container and virtual machine manager. Instance snapshots do not enforce container restriction settings, allowing a user to execute arbitrary commands on the server through lowlevel hooks.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2524278    
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Description OSIDB Bzimport 2026-08-21 14:56:12 UTC
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.