CVE-2026-33950: Signal K Server is a server application that runs on a central hub in a boat

Q: How do I fix CVE-2026-33950?

signal k server: upgrade to 2.24.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-33950 being exploited?

CVE-2026-33950 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-33950 affect?

CVE-2026-33950 affects signal k server. Severity is critical (CVSS 9.4). 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 fu

Q: How urgent is CVE-2026-33950?

Priority 52/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

This week

CRITICAL 9.4REMOTEUPGRADE

CVE-2026-33950 is a critical-severity flaw (CVSS 9.4) affecting signal k server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 ver

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.4 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 64%)
CISA exploited list	No
Weakness	CWE-285, CWE-288, CWE-862
Published	2026-04-02
Last modified	2026-07-24

Publisher (CNA): GitHub, Inc. · Vendor: signalk

Last updated 2026-07-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-02 17:16 UTCPublished CVE record published
2026-07-24 21:10 UTCUpdated Record last modified

signalk signal k server UPGRADE

Affected: < 2.24.0 · 2.24.0 beta1 · 2.24.0 beta2 · 2.24.0 beta3

Fixed in: 2.24.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy signal-k-server || rpm -q signal-k-server || signal-k-server --version

2. UPGRADE to 2.24.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade signal-k-server

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade signal-k-server

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-33950?

signal k server: upgrade to 2.24.0. Exact commands for each OS are on this page.

Is CVE-2026-33950 being exploited?

CVE-2026-33950 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-33950 affect?

CVE-2026-33950 affects signal k server. Severity is critical (CVSS 9.4). 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 fu

How urgent is CVE-2026-33950?

Priority 52/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2026-39320 HIGH 7.5 UPGRADE Signal K Server is a server application that runs on a central hub in a boat
CVE-2026-33951 HIGH 7.5 UPGRADE Signal K Server is a server application that runs on a central hub in a boat
CVE-2026-34083 MEDIUM 6.1 UPGRADE Signal K Server is a server application that runs on a central hub in a boat
CVE-2026-41893 HIGH 7.5 UPGRADE Signal K Server is a server application that runs on a central hub in a boat
CVE-2026-35038 MEDIUM 6.5 UPGRADE Signal K Server is a server application that runs on a central hub in a boat

References

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