CVE-2026-26243Arbitrary Folder Deletion in Qsync Central 5.0.0.5

Description

A path traversal vulnerability has been reported to affect Qsync Central. 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: Qsync Central 5.0.0.6 and later Qsync Central 5.1.0.2 and later Qsync Central 5.2.0.4 and later

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

References and patches

• https://www.qnap.com/en/app-release-notes?keyword=Qsync%20&app=QsyncServer&product-line=nas release-notes