CVE-2026-9639

EUVD-2026-39789
Nil-pointer dereference in CreateCustomVolumeFromBackup in LXD up to version 6.8 and 5.21 on Linux allows an authenticated user with can_create_storage_volumes permissions to cause a denial of service via a specially crafted custom-volume backup tarball that omits the expires_at snapshot field.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
canonicalCNA
6.5 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
canonicallxd
5.21.0 ≤
𝑥
< 5.21.5
CNA
canonicallxd
6.0 ≤
𝑥
< 6.9
CNA
Common Weakness Enumeration
References
https://github.com/canonical/lxd/pull/18320
https://github.com/canonical/lxd/pull/18390
https://github.com/canonical/lxd/security/advisories/GHSA-j93m-3j9p-m5m8
https://github.com/canonical/lxd/security/advisories/GHSA-j93m-3j9p-m5m8