Detections
Analytics

SCA: security update for signalk-server (GHSA-vmfm-ch9h-5c7g)

high Tenable Cloud Security Plugin ID 441117

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. Prior to version 2.25.0, the
 HTTP login endpoints (POST /login and POST /signalk/v1/auth/login) are protected by express-rate-limit
 (default: 100 attempts per 10-minute window, configurable via HTTP_RATE_LIMITS). The WebSocket login path
 — sending {login: {username, password}} messages over an established WebSocket connection — calls
 app.securityStrategy.login() directly without any rate limiting. An attacker can bypass HTTP rate limiting
 entirely by opening a WebSocket connection and attempting unlimited password guesses at the speed bcrypt
 allows (~20 attempts/sec with 10 salt rounds). This issue has been patched in version 2.25.0.
 (CVE-2026-41893)

Solution

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

See Also

https://github.com/advisories/GHSA-vmfm-ch9h-5c7g

Plugin Details

Severity: High

ID: 441117

Version: Revision 1.7

Type: Local

Family: SCA Checks

Published: 5/5/2026

Updated: 7/2/2026

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:C/A:N

CVSS Score Source: CVE-2026-41893

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:H/A:N

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

CVSS v4

Risk Factor: High

Base Score: 8.7

Threat Score: 7.7

Threat Vector: CVSS:4.0/E:P

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 5/4/2026

Vulnerability Publication Date: 5/4/2026

Reference Information

CVE: CVE-2026-41893

cwe: CWE-307