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CVE-2026-41544

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

MEDIUM
6.3
CVSS Score
Published: October 15, 2026 at 07:00 AM UTC
Updated: October 19, 2026 at 02:05 AM UTC
1 product affected across 1 vendorQcalAgent

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Severity
MEDIUM6.3
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

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

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

Release Notes
Source: cverecord
https://www.qnap.com/en/app-release-notes?keyword=QcalAgent&app=qcalendar&product-line=nas

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.7HIGHqnap
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-22

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