CVE-2026-86334
Published:September 28, 2026
Updated:October 09, 2026
Path traversal in the CLI client image export and copy functionality in Canonical LXD from 4.0.2 before 4.0.14, 5.0.10, 5.21.8, and 6.10 on all platforms allows a remote malicious or machine-in-the-middle image server to overwrite arbitrary local files and execute code on the client system via a crafted Content-Disposition header filename parameter during unified image export or copy operations into a local directory target.
Affected Packages
https://github.com/canonical/lxd.git (GITHUB):
Affected version(s) >=lxd-5.21.0 <lxd-5.21.8Fix Suggestion:
Update to version lxd-5.21.8https://github.com/canonical/lxd.git (GITHUB):
Affected version(s) >=lxd-5.0.0 <lxd-5.0.10Fix Suggestion:
Update to version lxd-5.0.10https://github.com/canonical/lxd.git (GITHUB):
Affected version(s) >=lxd-4.0.0 <lxd-4.0.14Fix Suggestion:
Update to version lxd-4.0.14Related Resources (9)
Do you need more information?
Contact UsCVSS v4
Base Score:
2.3
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
LOW
Vulnerable System Availability
LOW
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
4.2
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
LOW
Weakness Type (CWE)
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
EPSS
Base Score:
0.34