CVE-2026-66898
CRITICAL
NVD
CVSS Score
9.9
Severity
CRITICAL
Published
Aug 12, 2026
Vendor
unknown
Description
A path traversal vulnerability in LXD allows an attacker to manipulate file system paths during backup import and restore operations. When importing or restoring a backup archive, LXD fails to validate instance and storage volume names contained within the archive metadata. An attacker can exploit this flaw by supplying a crafted backup archive with malicious instance or volume names containing path traversal sequences, potentially allowing file access or overwriting outside the designated restore directory.