CVE-2025-68272 Signal K Server Vulnerable to Denial of Service via Unrestricted Access Request Flooding
An unauthenticated attacker can crash the Signal K Server by flooding the access request endpoint, causing a memory exhaustion denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-68272?
CVE-2025-68272 is a high-severity denial of service vulnerability in signalk-server, published on 1 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Signal K Server is a server application that runs on a central hub in a boat. A Denial of Service (DoS) vulnerability in versions prior to 2.19.0 allows an unauthenticated attacker to crash the SignalK Server by flooding the access request endpoint (`/signalk/v1/access/requests`). This causes a "JavaScript heap out of memory" error due to unbounded in-memory storage of request objects. Version 2.19.0 fixes the issue.
Which versions are affected by CVE-2025-68272?
2 open source packages ship an affected version, including signalk-server. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
signalk-server npm | All versions | 2.19.0 |
signalk-server npm | All versions | 2.19.0 |
Products include Signalk Signal K Server.
How do I fix CVE-2025-68272?
Upgrade signalk-server to 2.19.0 or later.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2025-68272 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-68272 exists.
Other vulnerabilities in signalk-server
- CVE-2026-23515 RCE - Command Injection in Signal K set-system-time plugin
- CVE-2025-66398 Signal K Server has Unauthenticated State Pollution leading to Remote Code Execution (RCE)
- CVE-2026-33950 signalk-server: Privilege Escalation by Admin Role Injection via /enableSecurity
- CVE-2025-68620 Signal K Server vulnerable to JWT Token Theft via WebSocket Enumeration and Unauthenticated Polling
- CVE-2026-41893 Signal K Server's WebSocket Login Endpoint Lacks Rate Limiting (Credential Brute-Force)
Sources
Also known as GHSA-7rqc-ff8m-7j23.