CVE-2026-16033
Arbitrary file read+write on host via templates/ symlink in malicious image
CVSS Score
8.5
EPSS Score
0.0%
EPSS Percentile
0th
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 | CWE-22 |
| Vendor | canonical |
| Product | lxd |
| Ecosystems | |
| Industries | Technology |
| Published | Aug 12, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
Low
Availability
None
Affected Versions
Canonical / LXD
4.0.0 < 4.0.12 5.0.0 < 5.0.8