CVE•Published 2026-08-12•Modified 2026-09-11•1 article on news•5 live references•NVD data

CVE-2026-66898Canonical · Lxd

Vulnerability data via NVD (ingested)

CVSS v3.1

9.9

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS percentile

Exploit Prediction Scoring System · top 73% of all CVEs

Weaknesses (CWE)

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Description

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.

Timeline

Published 2026-08-12

Modified 2026-09-11

External references

NVD MITRE Exploit-DB GitHub PoC VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2026-66898

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Canonical Lxd"

All exposed Canonical Lxd instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Lxd"

HTTP body or banner mentions "Lxd" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2026-66898