CVE-2026-59562 in IoTDB
Summary
by MITRE • 10/22/2026
Missing authentication for critical function vulnerability in Apache IoTDB.
This issue affects Apache IoTDB: from 2.0.0 before 2.0.11.
Users are recommended to upgrade to version 2.0.11, which fixes the issue.
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Analysis
by VulDB Data Team • 10/22/2026
The identified security flaw within Apache IoTDB versions ranging from 2.0.0 up to but not including 2.0.11 represents a critical failure in access control mechanisms. This vulnerability is classified as Missing Authentication for Critical Function, corresponding directly to CWE-306 in the Common Weakness Enumeration taxonomy. The core technical issue stems from specific endpoints or internal operations within the database engine that do not enforce mandatory authentication checks before executing sensitive commands. In a properly secured system, every request interacting with critical functions must be validated against an established identity and permission set. However, due to this oversight, unauthenticated actors can interact directly with these exposed interfaces without providing valid credentials. This architectural gap effectively bypasses the intended security perimeter, allowing any network-accessible client to perform actions that should strictly require administrative or authorized user privileges.
The operational impact of this vulnerability is severe given the nature of IoTDB as a time-series database designed for Internet of Things environments where data integrity and confidentiality are paramount. An attacker exploiting this flaw can potentially execute arbitrary commands, modify system configurations, access sensitive telemetry data, or even disrupt service availability by issuing destructive queries without any form of authentication barrier. Since Apache IoTDB is often deployed in industrial control systems, smart city infrastructure, and large-scale sensor networks, the compromise of these unauthenticated endpoints could lead to significant operational disruptions, data exfiltration, or manipulation of critical physical processes dependent on accurate time-series data. The lack of authentication means that even users with no prior access rights can escalate their privileges implicitly by simply sending crafted requests to the vulnerable API endpoints, effectively rendering any existing role-based access control measures ineffective for those specific functions.
From a tactical perspective, this vulnerability aligns with MITRE ATT&CK techniques related to Initial Access and Privilege Escalation, specifically leveraging unauthenticated interfaces to gain footholds within networked environments. Attackers can automate the discovery of these endpoints using standard scanning tools and exploit them remotely over the network without needing prior credentials or social engineering efforts. This significantly lowers the barrier for entry, making it a high-risk target for automated attacks across the internet. The persistence of this flaw in versions leading up to 2.0.11 indicates that earlier releases lacked rigorous validation checks on certain administrative or diagnostic functions, which are often exposed internally but may inadvertently become accessible externally depending on network configuration and proxy settings.
To mitigate this risk immediately, organizations running affected versions must prioritize upgrading Apache IoTDB to version 2.0.11 or later as soon as possible. The vendor has addressed the authentication gaps in this release by implementing strict access control checks for all critical functions that were previously exposed without verification. In addition to applying the software patch, administrators should review their network segmentation strategies to ensure that database ports are not directly accessible from untrusted networks such as the public internet. Implementing a Web Application Firewall or reverse proxy with additional authentication layers can provide defense-in-depth while the upgrade is being processed. Regular security audits and penetration testing focused on API endpoints will help identify similar misconfigurations in other services, ensuring robust protection against unauthorized access attempts.