CVE-2026-62941
CriticalCVSS 9.9Summary
Incus prior to version 7.3.0 has a vulnerability where when copying an instance across projects, the project restriction check (`AllowInstanceCreation`) runs BEFORE the source instance's configuration is merged into the request. Dangerous configuration keys (including `security.privileged`, `raw.lxc`, `raw.apparmor`) from the source instance are merged AFTER the check passes, bypassing all project restrictions on the target project.
Risk Assessment
A user with project restrictions can create a privileged instance in the target project, potentially leading to privilege escalation and host compromise.
Recommendation
Update Incus to version 7.3.0 or later, which includes a fix for this issue.
Original NVD description (English source)
Incus is a system container and virtual machine manager. Prior to version 7.3.0, when copying an instance across projects, the project restriction check (`AllowInstanceCreation`) runs BEFORE the source instance's configuration is merged into the request. Dangerous configuration keys (including `security.privileged`, `raw.lxc`, `raw.apparmor`) from the source instance are merged AFTER the check passes, bypassing all project restrictions on the target project. Version 7.3.0 patches the issue.