CVE-2025-66398

🚨 CRITICAL

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...

Published
Jan 01, 2026
Last Modified
Jan 06, 2026
Views
7
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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.

Affected Products (1)

signalk - signal_k_server

Version: *

CVSS Scores

CVSS 3.1 9.6
9.6
CRITICAL
CVSS 2.0 9.6

Additional Information

Source
security-advisories@github.com
State
Analyzed

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