CVE-2026-67343 in arcadedb
Summary
by MITRE • 08/01/2026
ArcadeDB versions before 26.7.2 fail to properly redact the cluster token in the GET /api/v1/server endpoint, allowing authenticated users to retrieve the arcadedb.ha.clusterToken value in cleartext. Attackers can use the leaked token with X-ArcadeDB-Cluster-Token and X-ArcadeDB-Forwarded-User headers to impersonate root and execute administrative actions including user creation, database operations, and server shutdown.
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Analysis
by VulDB Data Team • 08/01/2026
This vulnerability affects ArcadeDB versions prior to 26.7.2 and represents a critical security flaw in the database management system's authentication and authorization mechanisms. The core issue lies in the improper redaction of sensitive cluster token information within the GET /api/v1/server endpoint response, which exposes the arcadedb.ha.clusterToken value in plaintext format. This represents a direct violation of information disclosure principles and creates a significant attack surface for authenticated threat actors who can leverage this vulnerability to escalate their privileges within the system.
The technical implementation flaw stems from inadequate input validation and output sanitization processes within the server endpoint handling logic. When an authenticated user makes a request to the /api/v1/server endpoint, the system fails to properly filter or redact sensitive configuration parameters including the cluster token value. This vulnerability falls under the CWE-209 category of "Information Exposure Through an Error Message" and more specifically aligns with CWE-546 which addresses "Sensitive Information Exposure". The exposed token value can be directly intercepted and utilized by attackers who have established authenticated access to the system, making this a particularly dangerous flaw that requires minimal additional reconnaissance to exploit.
The operational impact of this vulnerability extends far beyond simple information disclosure, as it enables full administrative privilege escalation. Attackers who obtain the cluster token can leverage it in conjunction with specific HTTP headers including X-ArcadeDB-Cluster-Token and X-ArcadeDB-Forwarded-User to impersonate root-level administrative accounts within the ArcadeDB environment. This capability allows unauthorized users to perform critical system operations such as creating new administrative user accounts, executing database management functions, and potentially shutting down the entire server instance. The implications of this vulnerability are particularly severe in environments where ArcadeDB serves as a core data repository for enterprise applications or critical business processes.
The attack vector for this vulnerability requires only authenticated access to the system, making it particularly dangerous as it can be exploited by insiders or compromised legitimate users. Once an attacker obtains access to any valid user account within the ArcadeDB environment, they can simply make a request to the vulnerable endpoint and extract the plaintext cluster token from the response. This extracted token then enables the attacker to make authenticated requests with elevated privileges through the specified header mechanisms. The vulnerability aligns with ATT&CK technique T1566 which covers "Phishing for Information" and potentially T1078 which addresses "Valid Accounts" as it exploits legitimate authentication mechanisms to gain unauthorized access to administrative capabilities.
Organizations should immediately implement mitigation strategies including updating to ArcadeDB version 26.7.2 or later, which contains the necessary patch to properly redact sensitive information in server responses. Additionally, network monitoring should be enhanced to detect unusual patterns of requests to the /api/v1/server endpoint and any suspicious header usage that might indicate exploitation attempts. Access controls should be reviewed to ensure principle of least privilege is maintained, and regular security auditing should include verification that sensitive configuration parameters are properly masked in API responses. Security teams should also implement continuous monitoring for unauthorized administrative actions within ArcadeDB environments, as the vulnerability could enable attackers to perform operations that would normally require explicit administrative privileges without detection.