CVE-2026-67357Network attack vector

Root impersonation via unmasked HA cluster token

Published Aug 2, 2026 · Updated Aug 2, 2026

Information disclosure in ArcadeDB 26.7.2 and earlier allows remote authenticated users to obtain an HA cluster token through MCP. GetServerSettingsTool.maskSensitive redacts only keys containing "password", so get_server_settings serializes arcadedb.ha.clusterToken in cleartext instead of applying GlobalConfiguration.isHidden(). Exploitation requires MCP to be enabled for a non-root user and an explicitly configured token; that token authenticates forged forwarded-user requests as root.

CVSS severity7.7
High
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in ArcadeDB 26.7.2 and earlier allows remote authenticated users to obtain an HA cluster token through MCP. GetServerSettingsTool.maskSensitive redacts only keys containing "password", so get_server_settings serializes arcadedb.ha.clusterToken in cleartext instead of applying GlobalConfiguration.isHidden(). Exploitation requires MCP to be enabled for a non-root user and an explicitly configured token; that token authenticates forged forwarded-user requests as root.

The record

CVE
CVE-2026-67357
Published
Aug 2, 2026
Updated
Aug 2, 2026
Vendor
Arcade Data
Product
ArcadeDB
Classifications
CWE-200, CWE-522, T1550
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 2, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <26.7.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Arcade Data · ArcadeDBversion=0 <26.7.3

Published CVSS scores

7.7VulnCheck CNACVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
7.5VulnCheck CNACVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
CWE-522Insufficiently Protected Credentials
T1550Use Alternate Authentication Material

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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