CVE-2026-63299

critical · 9.9

An authorization bypass vulnerability in LXD allows an authenticated user to bypass project-level disk and volume limits. Two related code paths fail to verify resource limits during volume operations: the storagePoolVolumeTypePostMove function omits the limits.AllowVolumeCreation check before moving a volume across projects, and volume snapshot restore operations skip the AllowVolumeUpdate check when the configuration is nil (Config == nil). An attacker can exploit these flaws to allocate storage resources that exceed the administrative limits configured for a project.

9.9

CVSS

0.6%

EPSS (exploit prob.)

46th

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-770

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, < 6.10

Check a specific version with /api/v1/cve/match.

References

https://github.com/canonical/lxd/security/advisories/GHSA-5h78-p252-989h

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-63299