CVE-2026-34178
critical · 9.1In Canonical LXD before 6.8, the backup import path validates project restrictions against backup/index.yaml in the supplied tar archive but creates the instance from backup/container/backup.yaml, a separate file in the same archive that is never checked against project restrictions. An authenticated remote attacker with instance-creation permission in a restricted project can craft a backup archive where backup.yaml carries restricted settings such as security.privileged=true or raw.lxc directives, bypassing all project restriction enforcement and allowing full host compromise.
9.1
CVSS
0.4%
EPSS (exploit prob.)
36th
EPSS percentile
2026-04-09
Published
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Weaknesses
CWE-20
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| canonical | lxd | >= 4.12, <= 5.0.6 |
| canonical | lxd | >= 5.21.0, <= 5.21.4 |
| canonical | lxd | >= 6.0, <= 6.7 |
Check a specific version with /api/v1/cve/match.
References
Query this programmatically:
curl https://evil-db.io/api/v1/cve/CVE-2026-34178