CVE-2026-9640 (GCVE-0-2026-9640)
Vulnerability from cvelistv5
Published
2026-06-26 15:50
Modified
2026-06-30 03:55
Severity ?
7.2 (High) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-863 - Incorrect Authorization
Summary
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.
References
Impacted products
Vendor Product Version
Canonical LXD Version: 5.21.0   ≤
Version: 5.0.0   ≤
Version: 6.0   ≤
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