Path Traversal to Root RCE in QNAP Download Station via Addon/Search addon Parameter
A relative path traversal vulnerability has been reported to affect Download Station. If a remote attacker gains a user account, they can then exploit the vulnerability to read the contents of unexpected files or system data. We have already fixed the vulnerability in the following version: Download Station 5.10.2.313 and later Download Station 5.11.3.322 and later
CVE-2026-39993
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-2026-39993
Download Station
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.
[
{
"vendor": "QNAP Systems Inc.",
"product": "Download Station",
"versions": [
{
"status": "affected",
"version": "5.10.x",
"lessThan": "5.10.2.313",
"versionType": "custom"
},
{
"status": "affected",
"version": "5.11.x",
"lessThan": "5.11.3.322",
"versionType": "custom"
}
],
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-39993
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #28841 · Revision 1
- Added to Heist Feed
- Publisher date