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CVE-2026-23515— RCE - Command Injection in Signal K set-system-time plugin

Quick assessment

Affected
SignalK signalk-server
Exploitation
High exploitation probability; assess promptly
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 1.5.0之前版本存在操作系统命令注入漏洞，该漏洞源于处理navigation.datetime值时shell命令构造不安全，可能导致命令注入。

CVSS 10.0 · Critical EPSS 4.59% · P91
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I. Basic Information for CVE-2026-23515

Vulnerability Information
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Vulnerability Title
RCE - Command Injection in Signal K set-system-time plugin
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 1.5.0, a command injection vulnerability allows authenticated users with write permissions to execute arbitrary shell commands on the Signal K server when the set-system-time plugin is enabled. Unauthenticated users can also exploit this vulnerability if security is disabled on the Signal K server. This occurs due to unsafe construction of shell commands when processing navigation.datetime values received via WebSocket delta messages. This vulnerability is fixed in 1.5.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Signal K Server 操作系统命令注入漏洞
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 1.5.0之前版本存在操作系统命令注入漏洞，该漏洞源于处理navigation.datetime值时shell命令构造不安全，可能导致命令注入。
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)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
SignalK signalk-server < 1.5.0 -

II. Public POCs for CVE-2026-23515

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III. Intelligence Information for CVE-2026-23515

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Patches & Fixes for CVE-2026-23515 (1)

Vendor Advisories for CVE-2026-23515 (1)

IV. Related Vulnerabilities

Same product: signalk-server
Same vendor: SignalK
Same weakness: CWE-78

V. Comments for CVE-2026-23515

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