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.
{
"cna_assigner": "canonical",
"cwe_ids": [
"CWE-22"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/86xxx/CVE-2026-86334.json",
"unresolved_ranges": [
{
"extracted_events": [
{
"introduced": "6.0"
},
{
"fixed": "6.10"
}
],
"source": "AFFECTED_FIELD"
}
]
}