CVE-2026-63297
critical · 9.9An authorization bypass vulnerability in LXD due to a timing flaw during configuration merging allows an authenticated attacker to bypass target project restrictions during cross-project instance copies. When copying an instance to a target project, LXD performs restriction checks before configuration merging is complete, creating a time-of-check to time-of-use (TOCTOU) condition. An attacker can exploit this flaw to copy instances with disallowed high-privilege configurations into restricted projects, bypassing security controls.
9.9
CVSS
0.3%
EPSS (exploit prob.)
25th
EPSS percentile
2026-08-12
Published
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Weaknesses
CWE-367CWE-863
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| canonical | lxd | >= 5.0.0, < 5.0.8 |
| canonical | lxd | >= 5.1, < 5.21.6 |
| canonical | lxd | >= 6.0, < 6.9 |
Check a specific version with /api/v1/cve/match.
References
Query this programmatically:
curl https://evil-db.io/api/v1/cve/CVE-2026-63297