CVE-2026-40008
Apache Software Foundation · IoTDB
Apache IoTDB versions 1.0.0 through 2.0.9 are vulnerable to unsafe reflection via the pipe processor, which fails to validate externally controlled Java class names.
Executive summary
A critical unsafe reflection vulnerability in Apache IoTDB allows unauthenticated remote attackers to achieve arbitrary code execution.
Vulnerability
The vulnerability exists in the pipe processor, which uses Class.forName().newInstance() on user-supplied input without validation. This allows an unauthenticated attacker to instantiate arbitrary Java classes, potentially leading to remote code execution.
Business impact
This vulnerability is rated at 9.8 (Critical) because it allows for full system compromise without authentication. Exploitation would likely result in total loss of confidentiality, integrity, and availability of the IoTDB instance and potentially the underlying host server, posing a severe risk to data processing environments.
Remediation
Immediate Action: Upgrade Apache IoTDB to version 2.0.10 or later immediately to resolve the unsafe reflection flaw.
Proactive Monitoring: Inspect application logs for unusual class loading patterns or attempts to execute unexpected Java methods within the pipe processor.
Compensating Controls: Deploy a Web Application Firewall (WAF) to filter malicious requests containing class-instantiation payloads and restrict network access to the IoTDB management ports.
Exploitation status
Public Exploit Available: false
Analyst recommendation
The severity of this remote code execution vulnerability requires an immediate upgrade to version 2.0.10. Security teams should treat this as a high-priority task to ensure that the environment is protected against potential exploitation of the insecure reflection mechanism.