Home/CVE/Signal K Server is a server application that runs on a central hub in a boat. Prior to version 2.24.0-beta.4, there is a
CVE

CVE-2026-33950

Signal K Server is a server application that runs on a central hub in a boat. Prior to version 2.24.0-beta.4, there is a

Signal K Server is a server application that runs on a central hub in a boat. Prior to version 2.24.0-beta.4, there is a privilege escalation vulnerability by Admin Role Injection via /enableSecurity. An unauthenticated attacker can gain full Administrator access to the SignalK server at any time, allowing them to modify sensitive vessel routing data, alter server configurations, and access restricted endpoints.

This issue has been patched in version 2.24.0-beta.4.

CRITICAL · CVSS 9.4 EPSS 0.00031
Act now
  • Public exploit or PoC is available
  • SSVC automatable: yes - attacks can be scripted at scale
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-285Improper Authorization
CWE-288Authentication Bypass Using an Alternate Path or Channel
CWE-862Missing Authorization
▤

Affected Products & Versions

2
signalk signal k server< 2.24.0
signalk signal k serverall versions
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
npm signalk-server CRITICAL fixed in 2.24.0-beta.4
⚠

Public Exploits & PoCs

1
pocgithub.com · GHSA-x8hc-fqv3-7gwfgithub.com
▣

Scoring & Timeline

9.4
CRITICAL · CVSS v3.1 · security-advisories@github.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD02 Apr 2026 · 05:16 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
SSVC triage · cisa-vulnrichment
Exploitation
poc
Automatable
yes
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/SignalK/signalk-server/releases/tag/v2.24.0-beta.4ProductRelease Notes
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