signalk-server: Privilege Escalation by Admin Role Injection via /enableSecurity

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Summary

CVECVE-2026-33950
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-02 17:16:22 UTC
Updated2026-04-06 15:04:42 UTC
DescriptionSignal 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.

Risk And Classification

Primary CVSS: v3.1 9.4 CRITICAL from [email protected]

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

EPSS: 0.000480000 probability, percentile 0.147410000 (date 2026-04-07)

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

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary9.4CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
3.1CNADECLARED9.4CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

CVSS v3.1 Breakdown

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

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Signalk Signal K Server All All All All
Application Signalk Signal K Server 2.24.0 beta1 All All
Application Signalk Signal K Server 2.24.0 beta2 All All
Application Signalk Signal K Server 2.24.0 beta3 All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA SignalK Signalk-server affected < 2.24.0-beta.4 Not specified

References

ReferenceSourceLinkTags
github.com/SignalK/signalk-server/releases/tag/v2.24.0-beta.4 [email protected] github.com Product, Release Notes
github.com/SignalK/signalk-server/security/advisories/GHSA-x8hc-fqv3-7gwf [email protected] github.com Exploit, Vendor Advisory
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