CVE-2026-58663 in IoTDB
Summary
by MITRE • 10/22/2026
An authentication bypass vulnerability exists in Apache IoTDB's Thrift RPC service
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 vulnerability identified in Apache IoTDB represents a critical authentication bypass flaw within its Thrift Remote Procedure Call service interface. This security defect impacts versions of the software ranging from release 2.0.0 up to, but not including, version 2.0.11. The core issue stems from insufficient validation or enforcement mechanisms during the initial handshake and request processing phases of the Thrift protocol implementation. In a properly secured system, every RPC invocation must be authenticated against configured user credentials before any business logic is executed. However, in these affected versions, specific code paths allow unauthenticated requests to bypass the standard authentication checks, effectively granting attackers access to protected endpoints without valid credentials. This flaw undermines the fundamental security principle of least privilege and exposes sensitive operational data and control interfaces to unauthorized entities on the network.
From a technical perspective, this vulnerability aligns with CWE-287, which describes Improper Authentication, as well as CWE-306, Missing Authentication for Critical Function. The Thrift RPC framework is commonly used in distributed systems like IoTDB for efficient communication between components and external clients. When the authentication layer fails to intercept or reject unauthenticated requests at the protocol level, it creates a direct path for exploitation. An attacker who can reach the service port over the network does not need to guess passwords or exploit complex logic errors; they simply send a crafted RPC request that triggers the vulnerable code path where authentication is skipped. This bypass allows the execution of administrative commands, data retrieval operations, and configuration changes that should strictly require elevated privileges. The severity is heightened by the fact that IoTDB often manages time-series data for industrial internet of things applications, where integrity and confidentiality are paramount.
The operational impact of this vulnerability is severe, particularly in environments where Apache IoTDB is exposed to untrusted networks or lacks robust network segmentation controls. Successful exploitation allows an attacker to gain unauthorized access to the database system. This can lead to a complete compromise of data integrity through malicious insertion or modification of time-series records, which may corrupt downstream analytics and decision-making processes. Furthermore, attackers could exfiltrate sensitive historical data stored within the IoTDB instances. In industrial control systems or smart infrastructure scenarios relying on this software, such unauthorized access could potentially disrupt physical operations if critical sensor readings are altered or if system configurations are changed to disable monitoring capabilities. The lack of authentication also facilitates lateral movement, as compromised credentials from other services might be reused if there is any identity correlation, although the primary risk here is direct unauthenticated access.
To mitigate this vulnerability and reduce the attack surface, organizations running Apache IoTDB must prioritize immediate software updates. The recommended course of action is to upgrade all affected instances to version 2.0.11 or later, where the authentication bypass has been resolved by enforcing strict credential validation on all RPC requests regardless of their origin. Until an upgrade can be performed, temporary mitigations should include restricting network access to the Thrift service port using firewall rules or security groups, ensuring that only trusted IP addresses and subnets can communicate with the IoTDB instance. Additionally, deploying a Web Application Firewall or API gateway in front of the service may provide an additional layer of inspection, although this is not a substitute for patching the underlying application flaw. Regular vulnerability scanning and monitoring for anomalous RPC traffic patterns can also help detect potential exploitation attempts while remediation efforts are underway.