CVE-2026-25228— SignalK Server has Path Traversal leading to information disclosure
Quick assessment
Affected
SignalK signalk-server
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Signal K Server是Signal K开源的一个船用中央服务器。 Signal K Server 2.20.3之前版本存在路径遍历漏洞，该漏洞源于applicationData API存在路径遍历，可能导致任意文件读写。
Possible ATT&CK Techniques 1 AI
T1083 · File and Directory Discovery
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I. Basic Information for CVE-2026-25228
Vulnerability Information
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Vulnerability Title
SignalK Server has Path Traversal leading to information disclosure
Source: CVE Program / CVE List V5
Vulnerability Description
Signal K Server is a server application that runs on a central hub in a boat. Prior to 2.20.3, a path traversal vulnerability in SignalK Server's applicationData API allows authenticated users on Windows systems to read, write, and list arbitrary files and directories on the filesystem. The validateAppId() function blocks forward slashes (/) but not backslashes (\), which are treated as directory separators by path.join() on Windows. This enables attackers to escape the intended applicationData directory. This vulnerability is fixed in 2.20.3.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
Signal K Server 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Signal K Server是Signal K开源的一个船用中央服务器。 Signal K Server 2.20.3之前版本存在路径遍历漏洞，该漏洞源于applicationData API存在路径遍历，可能导致任意文件读写。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| SignalK | signalk-server | < 2.20.3 | - |
|
II. Public POCs for CVE-2026-25228
| # | POC Description | Source Link | Shenlong Link |
|---|
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IV. Related Vulnerabilities
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Same weakness: CWE-22
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V. Comments for CVE-2026-25228
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