CVE-2026-55621
Incus is a system container and virtual machine manager. Prior to version 7.2.0, missing authorization checks exist for custom volume copying where an attacker knowing the name of a project that they don't have access to and the name of a custom volume in that project can copy the custom volume to a new project. This issue could allow an attacker to access secrets in custom volumes they are not authorized to access. Version 7.2.0 patches the issue.
CSIRTS triage
- What
- Multiple security issues in LXD could allow bypass of security restrictions or execution of arbitrary commands.
- Who is affected
- Deployments of LXD are affected.
- Urgency
- Remediation is necessary due to the potential for serious security breaches.
- Action
- Apply the latest security update for LXD.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.20% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 10% of all EPSS-scored CVEs.
Advisory coverage (2)
- highCVE-2026-55621: Incus is a system container and virtual machine manager. Prior to version 7.2.0, missing autho…nvd · 2026-08-21
- unknownDSA-6373-1 lxd - security updatedebian · 2026-06-28
External references
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