CVE-2025-68619: high-severity vulnerability in signalk-server
Signal K Server Vulnerable to Remote Code Execution via Malicious npm Package
Published · Updated
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.3epss 0.7%
exploitation probability
0.7%top 46% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
Affected products
SignalK · signalk-serverRelated CVEs — signalk-server
In the same product, most dangerous first.
CVE-2025-66398CRITICALSignal K Server has Unauthenticated State Pollution leading to Remote Code Execution (RCE)EPSS 19.9%CVE-2026-23515CRITICALRCE - Command Injection in Signal K set-system-time pluginEPSS 4.6%CVE-2025-68273MEDIUMSignal K Server Vulnerable to Unauthenticated Information Disclosure via Exposed EndpointsEPSS 0.8%CVE-2025-68272HIGHSignal K Server Vulnerable to Denial of Service via Unrestricted Access Request FloodingEPSS 0.6%CVE-2025-68620CRITICALSignal K Server vulnerable to JWT Token Theft via WebSocket Enumeration and Unauthenticated PollingEPSS 0.5%CVE-2026-25228MEDIUMSignalK Server has Path Traversal leading to information disclosureEPSS 0.4%