CVE-2026-41539
Medium
Description
A cross-site scripting (XSS) vulnerability has been reported to affect several QNAP operating system versions. The remote attackers can then exploit the vulnerability to bypass security mechanisms or read application data. We have already fixed the vulnerability in the following versions: QTS 5.2.9.3492 build 20260507 and later QuTS hero h5.2.9.3499 build 20260514 and later QuTS hero h5.3.4.3500 build 20260520 and later QuTS hero h6.0.0.3500 build 20260520 and later
SeverityMedium
CVSS6.1
Exploit probability—
Product
Qnap Quts Hero
PublishedJun 9, 2026
First seenJun 9, 2026
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| qnap quts_hero | h5.2.0.2737, h5.2.0.2782, h5.2.0.2789, h5.2.0.2802, h5.2.0.2823, h5.2.0.2851, h5.2.0.2860, h5.2.1.2929, h5.2.1.2940, h5.2.2.2952, h5.2.3.3006, h5.2.4.3070, h5.2.4.3079, h5.2.5.3138, h5.2.6.3195, h5.2.7.3256, h5.2.7.3297, h5.2.8.3321, h5.2.8.3350, h5.2.8.3359, h5.2.9.3410, h5.2.9.3492, h5.3.0.3115, h5.3.0.3145, h5.3.0.3192, h5.3.1.3250, h5.3.1.3292, h5.3.2.3354, h5.3.3.3424, h6.0.0.3324, h6.0.0.3382, h6.0.0.3397, h6.0.0.3459 | — |
| qnap qts | 5.2.0.2737, 5.2.0.2744, 5.2.0.2782, 5.2.0.2802, 5.2.0.2823, 5.2.0.2851, 5.2.0.2860, 5.2.1.2930, 5.2.2.2950, 5.2.3.3006, 5.2.4.3070, 5.2.4.3079, 5.2.4.3092, 5.2.5.3145, 5.2.6.3195, 5.2.6.3229, 5.2.7.3256, 5.2.7.3297, 5.2.8.3332, 5.2.8.3350, 5.2.8.3359, 5.2.9.3410, 5.2.9.3451 | — |
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