CVE-2026-62940
Incus is a system container and virtual machine manager. Prior to version 7.3.0, when migrating an instance to another cluster member, user-supplied configuration overrides (including security-critical keys like security.privileged and raw.lxc) are applied without any project restriction enforcement, allowing a restricted project user to escalate to a privileged container and escape to the host. Version 7.3.0 patches the issue.
CSIRTS triage
- What
- Multiple security issues in Incus allow bypass of security restrictions and privilege escalation.
- Who is affected
- Systems running Incus container and virtual machine manager.
- Urgency
- High; privilege escalation and security bypass are critical risks.
- Action
- Update Incus to the patched version referenced in DSA-6407-1.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.42% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 35% of all EPSS-scored CVEs.
Advisory coverage (2)
- criticalCVE-2026-62940: Incus is a system container and virtual machine manager. Prior to version 7.3.0, when migratin…nvd · 2026-08-21
- unknownDSA-6407-1 incus - security updatedebian · 2026-07-31
External references
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