CVE-2026-66898

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.

Referanslar

• https://github.com/canonical/lxd/security/advisories/GHSA-m857-c7gc-c984
• https://github.com/canonical/lxd/security/advisories/GHSA-m857-c7gc-c984