CVE-2026-33951
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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
signalk-servernpm | < 2.24.0-beta.1 | 2.24.0-beta.1 |
Affected products
2Patches
Vulnerability mechanics
References
4- github.com/SignalK/signalk-server/security/advisories/GHSA-gfmv-vh34-h2x5nvdVendor AdvisoryWEB
- github.com/advisories/GHSA-gfmv-vh34-h2x5ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-33951ghsaADVISORY
- github.com/SignalK/signalk-server/releases/tag/v2.24.0-beta.1nvdProductRelease NotesWEB
News mentions
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