Signal K Server has Unauthenticated State Pollution leading to Remote Code Execution (RCE) (SignalK signalk-server)
At a glance
- Source
- NVD
- EPSS
- EPSS 19.85 % · percentile 97 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- GitHub_M
- NVD status
- Analyzed
Description
Signal K Server is a server application that runs on a central hub in a boat. Prior to version 2.19.0, an unauthenticated attacker can pollute the internal state (`restoreFilePath`) of the server via the `/skServer/validateBackup` endpoint. This allows the attacker to hijack the administrator's "Restore" functionality to overwrite critical server configuration files (e.g., `security.json`, `package.json`), leading to account takeover and Remote Code Execution (RCE). Version 2.19.0 patches this vulnerability.
Weaknesses (CWE)
- CWE-78 — Improper Neutralization of Special Elements used in an OS Command
- CWE-913 — Improper Control of Dynamically-Managed Code Resources
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | CRITICAL 9.7 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H | GitHub_M |
| CVSS 3.1 | CRITICAL 9.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H | NVD · security-advisories@github.com (Secondary) |
| CVSS 3.1 | HIGH 8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H | NVD · nvd@nist.gov (Primary) |
Advisories
- GHSA-w3x5-7c4c-66p9 — Signal K Server has Unauthenticated State Pollution leading to Remote Code Execution (RCE)
European references
- ENISA EUVD · EUVD-2025-206140
- GCVE · GCVE-0-2025-66398
Affected configurations (NVD CPE)
cpe:2.3:a:signalk:signal_k_server:*:*:*:*:*:*:*:*< 2.19.0
Affected products
| Product | Versions |
|---|---|
| SignalK · signalk-server | affected < 2.19.0 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |