Command Injection Vulnerability in Signal K Server Affects Maritime Applications
CVE-2026-23515

10CRITICAL

Key Information:

Vendor

Signalk

Status
Signalk-server
Vendor
CVE Published:
2 February 2026

What is CVE-2026-23515?

The Signal K Server prior to version 1.5.0 contains a command injection vulnerability related to the set-system-time plugin. Authenticated users with write permissions can potentially execute arbitrary shell commands on the server. Additionally, the vulnerability can be exploited by unauthenticated users if security measures are disabled, due to improper handling of navigation.datetime values through WebSocket delta messages. This issue highlights the importance of secure coding practices and has been addressed in version 1.5.0.

Affected Version(s)

signalk-server < 1.5.0

References

https://github.com/SignalK/signalk-server/security/adviso...
x_refsource_CONFIRM
https://github.com/SignalK/set-system-time/commit/75b11ea...
x_refsource_MISC

EPSS Score

9% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
10
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.