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TI-2026-74603 Aliases CVE-2026-24718GHSA-g96h-68fg-ppxw

Path traversal in QNAP Qsync Central lets attackers read files

Priority LOW 24CWE-22Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Information disclosure
Confidentiality · integrity · availability
Low · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-22 and the CVSS impact.

Summary

QNAP Qsync Central versions from 5.0.x before 5.0.0.7, from 5.1.x before 5.1.0.3, from 5.2.x before 5.2.0.5 and from 5.3.x before 5.3.0.2 are affected. A path traversal flaw (CWE-22) in qsyncsrv.cgi lets a remote attacker who holds a user account read unexpected files or system data. The attacker needs low privileges and no user interaction.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

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 5.0.0.7 and later Qsync Central 5.1.0.3 and later Qsync Central 5.2.0.5 and later Qsync Central 5.3.0.2 and later

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00362 30th percentileScored 2026-11-07
Fix Fixed Qsync Central (QNAP Systems Inc.): 5.0.0.7, 5.1.0.3, 5.2.0.5 +1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
QNAPQsync Central5.0.x to before 5.0.0.7; 5.1.x to before 5.1.0.3; 5.2.x to before 5.2.0.5; 5.3.x to before 5.3.0.25.0.0.7, 5.1.0.3, 5.2.0.5, 5.3.0.2Patch availableCNA
  • Qsync Central VendorQNAP Affected 5.0.x to before 5.0.0.7; 5.1.x to before 5.1.0.3; 5.2.x to before 5.2.0.5; 5.3.x to before 5.3.0.2 Fixed in 5.0.0.7, 5.1.0.3, 5.2.0.5, 5.3.0.2 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:qnap:qsync_central:*:*:*:*:*:*:*:*——QNAP
  • cpe:2.3:a:qnap:qsync_central:*:*:*:*:*:*:*:* Versions — — ·QNAP

Remediation

Update Qsync Central to 5.0.0.7 for the 5.0.x branch, 5.1.0.3 for 5.1.x, 5.2.0.5 for 5.2.x or 5.3.0.2 for 5.3.x.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

  • Fix · CNA Qsync Central (QNAP Systems Inc.) Fixed in 5.0.0.7, 5.1.0.3, 5.2.0.5, 5.3.0.2

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    QNAP Systems Qsync Central 5.0.0.7, 5.1.0.3 and 2 more versions

    2 records Highest priority Priority LOW 2 LOW

    Other records, highest priority first

    • TI-2026-74711 Symlink following in QNAP Qsync CentralPriority LOW 24
    Show all 2 records →

Timeline

  1. 2026-10-15 Threatist record created from CVE-2026-24718
  2. 2026-10-16 Alias added: GHSA-g96h-68fg-ppxw
  3. 2026-10-16 CISA SSVC decision points changed

References

Other 1

  • TI-2022-10581 DeadBolt Ransomware KEVCVSS 3.1CRITICAL 10.0
  • TI-2021-09791 Improper Authorization Vulnerability in HBS 3 (Hybrid Backup Sync) KEVCVSS 3.1CRITICAL 10.0
  • TI-2020-02221 Command Injection Vulnerability in QTS and QuTS hero KEVCVSS 3.1CRITICAL 9.8
  • TI-2019-05103 Path traversal in QNAP NAS devices running Photo Station KEVCVSS 3.1CRITICAL 9.8
  • TI-2019-05102 Path traversal in QNAP NAS devices running Photo Station KEVCVSS 3.1CRITICAL 9.8
  • TI-2019-05101 Improper input validation in QNAP NAS devices KEVCVSS 3.1CRITICAL 9.8
See all 681 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences