CVE-2026-63293

EUVD-2026-57540
A link following vulnerability in LXD allows an attacker to achieve arbitrary file read and write operations on the host system. When importing or unpacking an image archive, LXD fails to validate whether the metadata.yaml file is a symbolic link. An attacker can exploit this flaw by providing a crafted image archive with a symlinked metadata.yaml file pointing to target file paths on the host system.
Link Following
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
canonicalCNA
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: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
canonicallxd
4.0.0 ≤
𝑥
< 4.0.12
CNA
canonicallxd
5.0.0 ≤
𝑥
< 5.0.8
CNA
canonicallxd
5.21.0 ≤
𝑥
< 5.21.6
CNA
canonicallxd
6.0 ≤
𝑥
< 6.10
CNA
Common Weakness Enumeration
References
https://github.com/canonical/lxd/security/advisories/GHSA-j825-cg34-5fr5