CVE-2026-16033Arbitrary file read+write on host via templates/ symlink in malicious image
Updated under an hour ago ()
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It affects Canonical LXD. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 8.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
- Weakness (CWE)
- CWE-22
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- canonical
- NVD analysis
- Analyzed
- Record last updated
- Aug 13, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Canonical LXD canonical:lxd (from the name) | from 4.0.0 before 4.0.12; from 5.0.0 before 5.0.8 | CNA record |
canonical lxd canonical:lxd | from 4.0.0 before 4.0.12; from 5.0.0 before 5.0.7 | NVD |
References
- https://github.com/canonical/lxd/security/advisories/GHSA-9hcm-hxh5-7xxhvdb-entry, vendor-advisory, exploit
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.