What is CVE-2026-33951?

CVE-2026-33951 is a high-severity vulnerability in Signalk Signal_k_server, classified under Improper Access Control. CVSS score: 7.5/10. Published 2026-04-02.

How severe is CVE-2026-33951?

High severity. CVSS v3 base score is 7.5 out of 10.

Auth bypass in Signalk Signal_k_server

CVE-2026-33951

Signal K Server is a server application that runs on a central hub in a boat. Prior to version 2.24.0-beta.1, the SignalK Server exposes an unauthenticated HTTP endpoint that allows remote attackers to modify navigation data source priorit…

EPSS: 0.003 (23.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

Affected products

Signalk Signal_k_server
Signalk Signalk-server — versions < 2.24.0-beta.1

Weakness classification (CWE)

References

security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
security-advisories@github.com (Product, x_refsource_MISC, Release Notes)

Frequently asked questions

What is CVE-2026-33951?: CVE-2026-33951 is a high-severity vulnerability in Signalk Signal_k_server, classified under Improper Access Control. CVSS score: 7.5/10. Published 2026-04-02.
How severe is CVE-2026-33951?: High severity. CVSS v3 base score is 7.5 out of 10.