Description
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.
Published: 2026-08-02
Score: 7.7 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

ArcadeDB versions before 26.7.3 contain an information disclosure flaw in the MCP get_server_settings tool. The flaw exposes the arcadedb.ha.clusterToken in cleartext, allowing an attacker with MCP access to capture the cluster token. With this token, the attacker can construct HTTP requests using X-ArcadeDB-Cluster-Token and X-ArcadeDB-Forwarded-User headers to impersonate the root user and fully compromise the server, leading to unauthorized control of the database and any data stored within.

Affected Systems

ArcadeData's ArcadeDB database engine, versions prior to 26.7.3, are affected by this vulnerability. Only deployments using those earlier releases are at risk; newer versions (26.7.3 and later) are considered secure.

Risk and Exploitability

The CVSS score of 7.7 categorizes the issue as high severity. Exploitation requires prior MCP access, which is usually limited to administrators, but once obtained the token can be reused across the cluster. The EPSS score is not available, and the vulnerability is not listed in the CISA KEV catalog, yet its potential for full server compromise warrants close monitoring and timely patching by administrators.

Generated by OpenCVE AI on August 3, 2026 at 09:15 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Upgrade to ArcadeDB version 26.7.3 or later, which removes the get_server_settings information disclosure flaw.
  • Restrict access to the MCP interface so that only trusted administrators can connect, and consider implementing network segmentation to isolate the Control Plane.
  • If the get_server_settings endpoint is not required for your deployment, disable or delete that endpoint to prevent token leakage.

Generated by OpenCVE AI on August 3, 2026 at 09:15 UTC.

Tracking

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Advisories

No advisories yet.

History

Mon, 03 Aug 2026 21:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Sun, 02 Aug 2026 14:45:00 +0000

Type Values Removed Values Added
First Time appeared Arcadedata
Arcadedata arcadedb
Vendors & Products Arcadedata
Arcadedata arcadedb

Sun, 02 Aug 2026 12:45:00 +0000

Type Values Removed Values Added
Description 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.
Title ArcadeDB before 26.7.3 Information Disclosure via get_server_settings
Weaknesses CWE-200
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 7.7, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Subscriptions

Arcadedata Arcadedb
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-08-03T19:55:16.741Z

Reserved: 2026-07-29T13:36:36.278Z

Link: CVE-2026-67357

cve-icon Vulnrichment

Updated: 2026-08-03T19:55:12.762Z

cve-icon NVD

Status : Received

Published: 2026-08-02T13:16:53.520

Modified: 2026-08-03T20:17:27.833

Link: CVE-2026-67357

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-03T09:15:03Z

Weaknesses
  • CWE-200

    Exposure of Sensitive Information to an Unauthorized Actor