CVE-2025-68619 Signal K Server Vulnerable to Remote Code Execution via Malicious npm Package
An admin can achieve remote code execution by installing a malicious npm package via the appstore interface due to unsanitized version parameters.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-68619?
CVE-2025-68619 is a high-severity code injection vulnerability in signalk-server, published on 1 Jan 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
Signal K Server is a server application that runs on a central hub in a boat. Versions prior to 2.19.0 of the appstore interface allow administrators to install npm packages through a REST API endpoint. While the endpoint validates that the package name exists in the npm registry as a known plugin or webapp, the version parameter accepts arbitrary npm version specifiers including URLs. npm supports installing packages from git repositories, GitHub shorthand syntax, and HTTP/HTTPS URLs pointing to tarballs. When npm installs a package, it can automatically execute any `postinstall` script defined in `package.json`, enabling arbitrary code execution. The vulnerability exists because npm's version specifier syntax is extremely flexible, and the SignalK code passes the version parameter directly to npm without sanitization. An attacker with admin access can install a package from an attacker-controlled source containing a malicious `postinstall` script. Version 2.19.0 contains a patch for the issue.
Weakness: CWE-94
Which versions are affected by CVE-2025-68619?
2 open source packages ship an affected version, including signalk-server. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
signalk-server npm | All versions | 2.9.0 |
signalk-server npm | All versions | 2.9.0 |
Products include Signalk Signal K Server.
How do I fix CVE-2025-68619?
Upgrade signalk-server to 2.9.0 or later.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2025-68619 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-68619 exists.
Other vulnerabilities in signalk-server
- CVE-2026-23515 RCE - Command Injection in Signal K set-system-time plugin
- CVE-2025-66398 Signal K Server has Unauthenticated State Pollution leading to Remote Code Execution (RCE)
- CVE-2026-33950 signalk-server: Privilege Escalation by Admin Role Injection via /enableSecurity
- CVE-2025-68620 Signal K Server vulnerable to JWT Token Theft via WebSocket Enumeration and Unauthenticated Polling
- CVE-2026-41893 Signal K Server's WebSocket Login Endpoint Lacks Rate Limiting (Credential Brute-Force)
Sources
Also known as GHSA-93jc-vqqc-vvvh.