QcalAgent Path Traversal Fixed in 1.1.10
CVE-2026-41544 Published on October 15, 2026
Path Traversal leading to Arbitrary File Move, Docker Escape, and Host RCE in /calapi/renameUpload endpoint
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
Vulnerability Analysis
CVE-2026-41544 is exploitable with network access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity and availability.
Weakness Type
What is a Directory traversal Vulnerability?
The software uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the software does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
CVE-2026-41544 has been classified to as a Directory traversal vulnerability or weakness.
Products Associated with CVE-2026-41544
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Affected Versions
QNAP Systems Inc. QcalAgent:- Version 1.1.x and below 1.1.10 is affected.