critical9.9
CVE-2026-66898
A path traversal vulnerability in LXD allows an attacker to manipulate file system paths during backup import and restore operations.
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Canonical | Lxd | from 4.0.0 before 4.0.12 from 5.0.0 before 5.0.4 from 5.1 before 5.21.2 Version 6.0 |