Vulnerability Description
Signal K Server is a server application that runs on a central hub in a boat. Prior to version 2.24.0-beta.1, the SignalK Server exposes an unauthenticated HTTP endpoint that allows remote attackers to modify navigation data source priorities. This endpoint, accessible via PUT /signalk/v1/api/sourcePriorities, does not enforce authentication or authorization checks and directly assigns user-controlled input to the server configuration. As a result, attackers can influence which GPS, AIS, or other sensor data sources are trusted by the system. The changes are immediately applied and persisted to disk, allowing the manipulation to survive server restarts. This issue has been patched in version 2.24.0-beta.1.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Signalk | Signal K Server | < 2.24.0 |
Related Weaknesses (CWE)
References
- https://github.com/SignalK/signalk-server/releases/tag/v2.24.0-beta.1ProductRelease Notes
- https://github.com/SignalK/signalk-server/security/advisories/GHSA-gfmv-vh34-h2xVendor Advisory
FAQ
What is CVE-2026-33951?
CVE-2026-33951 is a vulnerability with a CVSS score of 7.5 (HIGH). Signal K Server is a server application that runs on a central hub in a boat. Prior to version 2.24.0-beta.1, the SignalK Server exposes an unauthenticated HTTP endpoint that allows remote attackers t...
How severe is CVE-2026-33951?
CVE-2026-33951 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-33951?
Check the references section above for vendor advisories and patch information. Affected products include: Signalk Signal K Server.