Detections
Analytics

SCA: security update for arcade-mcp-server (GHSA-g2jx-37x6-6438)

medium Tenable Cloud Security Plugin ID 436183

Description

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

 - Arcade MCP allows you to to create, deploy, and share MCP Servers. Prior to 1.5.4, the arcade-mcp HTTP
 server uses a hardcoded default worker secret ("dev") that is never validated or overridden during normal
 server startup. As a result, any unauthenticated attacker who knows this default key can forge valid JWTs
 and fully bypass the FastAPI authentication layer. This grants remote access to all worker
 endpoints—including tool enumeration and tool invocation—without credentials. This vulnerability is fixed
 in 1.5.4. (CVE-2025-66454)

See Also

https://github.com/advisories/GHSA-g2jx-37x6-6438

Plugin Details

Severity: Medium

ID: 436183

Version: Revision 1.7

Type: Local

Family: SCA Checks

Published: 12/2/2025

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 2.1

Percentile: 7.71

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

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

CVSS Score Source: CVE-2025-66454

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 12/2/2025

Vulnerability Publication Date: 12/2/2025

Reference Information

CVE: CVE-2025-66454