CVE-2026-39989: CWE-918 in QNAP Systems Inc. Download Station
Description
A server-side request forgery (SSRF) vulnerability has been reported to affect Download Station. If a remote attacker gains a user account, they can then exploit the vulnerability to read application data. We have already fixed the vulnerability in the following version: Download Station 5.10.1.312 and later Download Station 5.11.2.321 and later
CVSS v4.0
Score 5.3medium
Affected software
QNAP Systems Inc.
Download Station
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-918) in QNAP Download Station allows an authenticated remote attacker to perform SSRF attacks, enabling them to read application data by exploiting the server's request handling. The issue affects versions prior to 5.10.1.312 and 5.11.2.321. The CVSS 4.0 base score is 5.3, indicating a medium severity with network attack vector, low complexity, and requiring low privileges.
Potential Impact
An attacker with a valid user account can exploit the SSRF vulnerability to read sensitive application data from the server. This could lead to unauthorized disclosure of information within the application context.
Mitigation Recommendations
The vulnerability has been fixed in Download Station versions 5.10.1.312 and later, and 5.11.2.321 and later. Users should upgrade to these versions or later to remediate the issue.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- qnap
- Date Reserved
- 2026-04-08T02:30:26.921Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ad0a18d2cdf04f65621d7aa
Added to database: 10/15/2026, 09:49:01 UTC
Last enriched: 10/15/2026, 10:04:04 UTC
Last updated: 10/15/2026, 19:00:27 UTC
Views: 14
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