CLI Path Traversal via Content-Disposition in LXD Image Export/Copy
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.
CVE-2026-86334
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-86334
LXD
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://github.com/canonical/lxd",
"vendor": "Canonical",
"product": "LXD",
"versions": [
{
"status": "affected",
"version": "4.0.2",
"lessThan": "4.0.14",
"versionType": "semver"
},
{
"status": "affected",
"version": "5.0.0",
"lessThan": "5.0.10",
"versionType": "semver"
},
{
"status": "affected",
"version": "5.21.0",
"lessThan": "5.21.8",
"versionType": "semver"
},
{
"status": "affected",
"version": "6.0",
"lessThan": "6.10",
"versionType": "semver"
}
],
"platforms": [
"Linux"
],
"packageName": "LXD",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-86334
Source reference:
/cveMetadata/cveId
Publisher severity
medium
Source reference: /containers/cna/metrics
- Event
- #3276 · Revision 1
- Added to Heist Feed
- Publisher date