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
NISTPrimary
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: 34.67%
Affected Products (NVD)
VendorProductVersion
canonicallxd
5.0.0 ≤
𝑥
< 5.21.5
canonicallxd
6.0 ≤
𝑥
< 6.9
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
lxd
bookworm
vulnerable
bookworm (security)
vulnerable
trixie
5.0.2+git20231211.1364ae4-9+deb13u7
fixed
trixie (security)
5.0.2+git20231211.1364ae4-9+deb13u7
fixed
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