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CVE

CVE-2026-63299

Storage volume cross-project move and snapshot restore bypass project disk limits
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CVE

CVE-2026-63299

Storage volume cross-project move and snapshot restore bypass project disk limits

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.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
9.9
-
3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
C
H
U
-

Related Resources

No items found.

References

https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63299.json, https://github.com/canonical/lxd/security/advisories/GHSA-5h78-p252-989h, https://nvd.nist.gov/vuln/detail/CVE-2026-63299, https://github.com/canonical/lxd

Severity

9.9

CVSS Score
0
10

Basic Information

Base CVSS
9.9
EPSS Probability
0.00283%
EPSS Percentile
0.20298%
Introduced Version
761d134ceabd306f57acfb0ca51f59b03751a5b0,0
Fix Available
c6146714d0cacd04b77598bac149f5db714834f6

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