Detections
Analytics

SCA: security update for signalk-server (GHSA-7gcj-phff-2884)

high Tenable Cloud Security Plugin ID 440693

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - Signal K Server is a server application that runs on a central hub in a boat. Versions prior to 2.25.0 are
 vulnerable to an unauthenticated Regular Expression Denial of Service (ReDoS) attack within the WebSocket
 subscription handling logic. By injecting unescaped regex metacharacters into the `context` parameter of a
 stream subscription, an attacker can force the server's Node.js event loop into a catastrophic
 backtracking loop when evaluating long string identifiers (like the server's self UUID). This results in a
 total Denial of Service (DoS) where the server CPU spikes to 100% and becomes completely unresponsive to
 further API or socket requests. Version 2.25.0 contains a fix. (CVE-2026-39320)

Solution

Update the signalk-server library and its related packages to version 2.25.0 or later.

See Also

https://github.com/advisories/GHSA-7gcj-phff-2884

Plugin Details

Severity: High

ID: 440693

Version: Revision 1.4

Type: Local

Family: SCA Checks

Published: 4/21/2026

Updated: 6/1/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.73

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.1

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2026-39320

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 4/21/2026

Vulnerability Publication Date: 4/21/2026

Reference Information

CVE: CVE-2026-39320