CVE-2026-33951signalk-server: Unauthenticated Source Priorities Manipulation
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.
Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.
Affected products and versions
| Vendor | Product | Versions | |
|---|---|---|---|
| signalk | signal k server | < 2.24.0 | |
| SignalK | signalk-server | < 2.24.0-beta.1 |
References and patches
- https://github.com/SignalK/signalk-server/security/advisories/GHSA-gfmv-vh34-h2x5 Vendor Advisory
- https://github.com/SignalK/signalk-server/releases/tag/v2.24.0-beta.1 ProductRelease Notes
CPE matches (NVD) (1)
cpe:2.3:a:signalk:signal_k_server:*:*:*:*:*:*:*:*< 2.24.0