CVE-2026-63296

EUVD-2026-57515
An authorization bypass vulnerability in LXD allows an authenticated attacker to bypass target project restrictions during instance migration. When migrating an instance to a target project, LXD accepts configuration overrides without validating the new configuration against the target project's enforced restrictions. An attacker can exploit this flaw to move instances with disallowed high-privilege configurations into restricted projects, bypassing security controls.
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: 36.13%
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