CVE-2026-33950 | BDVDB-2026-324407 Detail

SignalKsignalk-server

Description#

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.

Impact#

Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact low. Attack vector: network.

Weaknesses#

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

References#

Exploit#

No public exploit known

History#

Version 12026-04-02Record published in the CVE List.
Version 22026-04-03Most recent update recorded in the CVE List.

Published

Published: 2026-04-02
Last modified: 2026-04-03

Vendor information

Vendor: SignalK
Product: signalk-server

All SignalK vulnerabilities

Score

9.4 Critical

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 38.0.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Authentication Issues

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
< 2.24.0-beta.4
Fixed
Not stated

Scoring System

CVSS v4.0

Not available

CVSS v3.1

9.4 Critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	None
User Interaction	None
Scope	Unchanged
Confidentiality	High
Integrity	High
Availability	Low

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).