CVE-2026-63299

EUVD-2026-57418
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
9.9 CRITICAL
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 45.93%
Affected Products (NVD)
VendorProductVersion
canonicallxd
5.0.0 ≤
𝑥
< 5.0.8
canonicallxd
5.1 ≤
𝑥
< 5.21.6
canonicallxd
6.0 ≤
𝑥
< 6.10
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
lxd
bookworm
vulnerable
bookworm (security)
vulnerable
trixie
vulnerable
trixie (security)
vulnerable
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
lxd
bionic
needs-triage
focal
needs-triage
jammy
dne
noble
dne
resolute
dne
xenial
needs-triage