CVE-2026-23515

CRITICAL

9.9

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.

CVE Details

CVSS v3.1 Score9.9

SeverityCRITICAL

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published2/2/2026

Last Modified2/27/2026

Sourcenvd

Honeypot Sightings0

Affected Products

signalk:signal_k_server

Weaknesses (CWE)

CWE-78

References

https://github.com/SignalK/set-system-time/commit/75b11eae2de528bf89ede3fb1f7ed057ddbb4d24(security-advisories@github.com)

https://github.com/SignalK/signalk-server/security/advisories/GHSA-p8gp-2w28-mhwg(security-advisories@github.com)

IOC Correlations

No correlations recorded

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