CVE-2026-16033

A path traversal vulnerability in LXD allows an attacker to achieve arbitrary host file read or unconstrained file creation. When processing image metadata templates, LXD fails to properly sanitize or restrict template file paths from escaping the instance templates directory (specifically affecting virtual machine / QEMU driver execution paths). An attacker can exploit this flaw by providing a crafted image archive with malicious template directives containing path traversal sequences, causing LXD to access or write files outside the intended template directory on the host system.

• CWE-22

• https://github.com/canonical/lxd/security/advisories/GHSA-9hcm-hxh5-7xxhVendor Advisory, Exploit
• https://github.com/canonical/lxd/security/advisories/GHSA-9hcm-hxh5-7xxhVendor Advisory, Exploit

Published

Aug 12, 2026

Last Modified

Sep 11, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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