Secuno
ENNL
Book demo

CVE-2026-33950

Signalk Signal K Server authentication bypass

9.4 CRITICALPublic exploitEPSS 0.48%
  1. Published2 Apr 2026

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityLow
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

Affected products

Signalk Signal K Server< 2.24.0 · 2.24.0

Remediation

Fixed in
Signalk Signal K Server≥ 2.24.0

References

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

CVE-2026-891089.1
SAP Manufacturing Integration and Intelligence does not sufficiently enforce…
CVE-2026-196228.8
IBM Planning Analytics 2.0, and 2.1 could allow a remote attacker to bypass…
CVE-2026-196208.8
IBM Planning Analytics 2.0, and 2.1 could allow a remote attacker to gain unauthorized…
CVE-2026-1096408.1
Frappe ERPNext before 16.22.0 contains a missing authorization vulnerability that…
CVE-2026-843608.1
Nginx UI is a web user interface for the Nginx web server. Prior to 2.4.1, the HTTP…
CVE-2026-843158.3
Nginx UI is a web user interface for the Nginx web server. Prior to 2.4.1, Nginx UI…

Frequently asked

Is CVE-2026-33950 being actively exploited?

CVE-2026-33950 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.48%.

How severe is CVE-2026-33950?

CVE-2026-33950 has a CVSS 3.1 base score of 9.4, rated critical. EPSS estimates a 0.48% probability of exploitation.

Which products are affected by CVE-2026-33950?

Affected products include Signalk Signal K Server.

How do I fix CVE-2026-33950?

Upgrade affected software to a fixed version, for example Signalk Signal K Server 2.24.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-33950 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

See how prioritisation worksBook a demo

Get Patch this first every Monday

Five vulnerabilities that matter this week, ranked on real exploitation. Plain language, one email, no spam.

You can unsubscribe with one click from every issue. We handle your details as described in our privacy policy.

Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.