GHSA-fq56-hvg6-wvm5
Critical · 9.1CVSS
9.1
EPSS
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Published
Jan 2, 2026
CISA due date
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The record
Signal K Server vulnerable to JWT Token Theft via WebSocket Enumeration and Unauthenticated Polling
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| npm | signalk-server | 0 | 2.19.0 |
Related vulnerabilities
- CVE-2025-68620 Signal K Server vulnerable to JWT Token Theft via WebSocket Enumeration and… Same vulnerability
- GHSA-q59x-jc9f-gfqf Signal K Server: Server-Side Request Forgery via Remote Connection Endpoints Also affects signalk-server
- CVE-2026-41893 Signal K Server is a server application that runs on a central hub in a boat. Also affects signalk-server
- GHSA-vmfm-ch9h-5c7g Signal K Server's WebSocket Login Endpoint Lacks Rate Limiting (Credential Brute-Force) Also affects signalk-server
- GHSA-7gcj-phff-2884 Signal K Server has an Unauthenticated Regular Expression Denial of Service (ReDoS) via… Also affects signalk-server
- CVE-2026-39320 Signal K Server is a server application that runs on a central hub in a boat. Also affects signalk-server
- GHSA-cxj8-ggf2-p57c Signal K Server: OAuth Authorization Code Theft via Unvalidated Host Header in OIDC Flow Also affects signalk-server
- GHSA-gfmv-vh34-h2x5 Signal K Server: Unauthenticated Source Priorities Manipulation Also affects signalk-server