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.
Metrics
Affected Vendors & Products
References
History
Tue, 06 Jan 2026 18:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Signalk signal K Server
|
|
| CPEs | cpe:2.3:a:signalk:signal_k_server:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Signalk signal K Server
|
Tue, 06 Jan 2026 00:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Mon, 05 Jan 2026 10:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Signalk
Signalk signalk-server |
|
| Vendors & Products |
Signalk
Signalk signalk-server |
Thu, 01 Jan 2026 18:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | Signal K Server has Unauthenticated State Pollution leading to Remote Code Execution (RCE) | |
| Weaknesses | CWE-78 CWE-913 |
|
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-01-01T18:00:38.575Z
Updated: 2026-01-05T21:00:41.972Z
Reserved: 2025-11-28T23:33:56.363Z
Link: CVE-2025-66398
Updated: 2026-01-05T21:00:37.636Z
Status : Analyzed
Published: 2026-01-01T18:15:40.550
Modified: 2026-01-06T18:34:31.007
Link: CVE-2025-66398
No data.