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.
Metrics
Affected Vendors & Products
References
History
Fri, 26 Jun 2026 17:30:00 +0000
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ssvc
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Fri, 26 Jun 2026 16:00:00 +0000
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| Description | 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. | |
| Title | LXD Snapshot Import Privilege Escalation Vulnerability | |
| Weaknesses | CWE-863 | |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: canonical
Published:
Updated: 2026-06-26T16:00:24.172Z
Reserved: 2026-05-26T18:31:24.593Z
Link: CVE-2026-9640
Updated: 2026-06-26T16:00:17.949Z
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OpenCVE Enrichment
Updated: 2026-06-26T17:45:03Z