What is CVE-2026-23515?

CVE-2026-23515 is a critical-severity vulnerability in Signalk Signalk-server, classified under OS Command Injection. CVSS score: 10.0/10. Published 2026-02-02.

How severe is CVE-2026-23515?

Critical severity. CVSS v3 base score is 10.0 out of 10.

RCE in Signalk Signalk-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: 0.106 (93.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

Affected products

Signalk Signalk-server — versions < 1.5.0

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

https://github.com/SignalK/signalk-server/security/advisories/GHSA-p8gp-2w28-mhwg (x_refsource_CONFIRM)
https://github.com/SignalK/set-system-time/commit/75b11eae2de528bf89ede3fb1f7ed057ddbb4d24 (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-23515?: CVE-2026-23515 is a critical-severity vulnerability in Signalk Signalk-server, classified under OS Command Injection. CVSS score: 10.0/10. Published 2026-02-02.
How severe is CVE-2026-23515?: Critical severity. CVSS v3 base score is 10.0 out of 10.