CVE-2026-9640
LXD Snapshot Import Privilege Escalation Vulnerability
CVSS Score
7.2
EPSS Score
0.0%
EPSS Percentile
0th
A privilege escalation vulnerability exists in LXD from 6.0 before 6.9, 5.21.0 before 5.21.5, and 5.0.0 before 5.0.7 regarding the handling of project-restriction policies during snapshot restoration.. An authenticated project operator in a restricted multi-tenant environment can bypass policy restrictions by importing a maliciously crafted instance backup containing restricted configuration keys within a snapshot. When the snapshot is restored, these restricted keys are applied to the live instance without policy validation. Starting the modified instance grants the operator unauthorized host root access.
| CWE | CWE-863 |
| Vendor | canonical |
| Product | lxd |
| Ecosystems | |
| Industries | Technology |
| Published | Jun 26, 2026 |
| Last Updated | Jun 26, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
Canonical / LXD
5.21.0 < 5.21.5 5.0.0 < 5.0.7 6.0 < 6.9
References
Credits
Miha Purg