What is CVE-2026-23515?

CVE-2026-23515 is a critical-severity vulnerability in Signalk Signal_k_server, classified under OS Command Injection. CVSS score: 9.9/10. Published 2026-02-02.

How severe is CVE-2026-23515?

Critical severity. CVSS v3 base score is 9.9 out of 10.

RCE in Signalk Signal_k_server

CVE-2026-23515

Signal K Server is a server application that runs on a central hub in a boat. Prior to 1.5.0, a command injection vulnerability allows authenticated users with write permissions to execute arbitrary shell commands on the Signal K server wh…

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.042 (89.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

Affected products

Signalk Signal_k_server
Signalk Signalk-server — versions < 1.5.0

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)
security-advisories@github.com (Patch, x_refsource_MISC)

Frequently asked questions

What is CVE-2026-23515?: CVE-2026-23515 is a critical-severity vulnerability in Signalk Signal_k_server, classified under OS Command Injection. CVSS score: 9.9/10. Published 2026-02-02.
How severe is CVE-2026-23515?: Critical severity. CVSS v3 base score is 9.9 out of 10.