CVE-2026-41544

Path Traversal leading to Arbitrary File Move, Docker Escape, and Host RCE in /calapi/renameUpload endpoint

Published Oct 15, 2026 CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
Description
A path traversal vulnerability has been reported to affect QcalAgent. 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:
QcalAgent 1.1.10 and later

Remediation

Vendor Solution

We have already fixed the vulnerability in the following version: QcalAgent 1.1.10 and later

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Qnap Systems
Qnap Systems qcalagent
Vendors & Products Qnap Systems
Qnap Systems qcalagent
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description A path traversal vulnerability has been reported to affect QcalAgent. 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: QcalAgent 1.1.10 and later
Title Path Traversal leading to Arbitrary File Move, Docker Escape, and Host RCE in /calapi/renameUpload endpoint
Weaknesses CWE-22
References
Metrics cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
qnap
Published
Updated
Oct 19, 2026, 2:05 AM
Reserved
Apr 21, 2026, 3:07 AM
Status
Awaiting Analysis
Published
Oct 15, 2026, 7:18 AM
Modified
Oct 15, 2026, 4:32 PM