Vulnerability · Published Oct 15, 2026 · Assigned by qnap
CVE-2026-41544Path Traversal leading to Arbitrary File Move, Docker Escape, and Host RCE in /calapi/renameUpload endpoint
High 8.7
In plain English
A high-severity path traversal in QcalAgent from QNAP Systems Inc.. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 30% of all known vulnerabilities).
Severity (CVSS 4.0)8.7High
Exploit odds (30 days)0.4%top 69.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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 products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| QNAP Systems Inc. | QcalAgent | 1.1.x – before 1.1.10 |
Weakness: CWE-22 · 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