Description

Signal K Server is a server application that runs on a central hub in a boat. Prior to version 2.19.0, an unauthenticated attacker can pollute the internal state (`restoreFilePath`) of the server via the `/skServer/validateBackup` endpoint. This allows the attacker to hijack the administrator's "Restore" functionality to overwrite critical server configuration files (e.g., `security.json`, `package.json`), leading to account takeover and Remote Code Execution (RCE). Version 2.19.0 patches this vulnerability.

INFO

Published Date :

2026-01-01T18:00:38.575Z

Last Modified :

2026-01-05T21:00:41.972Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2025-66398 vulnerability.

Vendors Products
Signalk
  • Signal K Server
  • Signalk-server
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-66398.

URL Resource
https://github.com/SignalK/signalk-server/releases/tag/v2.19.0 cve-icon cve-icon
https://github.com/SignalK/signalk-server/security/advisories/GHSA-w3x5-7c4c-66p9 cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
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