---
id: CVE-2026-67357
title: >-
  ArcadeDB versions before 26.7.3 contain an information disclosure
  vulnerability in the MCP get_server_settings tool that leaks the
  arcadedb.ha.clusterToken in cleartext
summary: >-
  ArcadeDB versions before 26.7.3 contain an information disclosure
  vulnerability in the MCP get_server_settings tool that leaks the
  arcadedb.ha.clusterToken in cleartext. Attackers with MCP access can retrieve
  the cluster token and use it…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-200
published: '2026-08-02'
updated: '2026-08-02'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-67357'
references:
  - url: >-
      https://github.com/ArcadeData/arcadedb/security/advisories/GHSA-p9wc-4fhr-78wm
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/arcadedb-information-disclosure-via-get-server-settings
    label: disclosure@vulncheck.com
tags:
  - nvd
ingestedAt: '2026-08-02T13:18:29.977Z'
epss: 0.00424
epssPercentile: 0.33951
---

## Overview

ArcadeDB versions before 26.7.3 contain an information disclosure vulnerability in the MCP get_server_settings tool that leaks the arcadedb.ha.clusterToken in cleartext. Attackers with MCP access can retrieve the cluster token and use it with X-ArcadeDB-Cluster-Token and X-ArcadeDB-Forwarded-User headers to impersonate root and achieve full server compromise.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.