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CVE-2026-39989

SSRF in QNAP Download Station

MEDIUM
5.3
CVSS Score
Published: October 15, 2026 at 09:30 AM UTC
Updated: October 15, 2026 at 04:32 PM UTC
1 product affected across 1 vendorDownload Station

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Severity
MEDIUM5.3
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

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

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

Release Notes
Source: cverecord
https://www.qnap.com/en/app_releasenotes/list.php?app_choose=DownloadStation

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.3MEDIUMqnap
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-918

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