CVE-2026-41539

Summary

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

Affected Software

VendorProductVersion RangeStatus
QNAP Systems Inc.QTS5.2.0 < 5.2.9.3492 build 20260507affected
QNAP Systems Inc.QuTS heroh5.2.0 < h5.2.9.3499 build 20260514affected
QNAP Systems Inc.QuTS heroh5.3.0 < h5.3.4.3500 build 20260520affected
QNAP Systems Inc.QuTS hero? < h6.0.0.3500 build 20260520affected

Weaknesses

  • CWE-79: CWE-79

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: total

References