CVE-2026-40008: Apache IoTDB: Arbitrary Class Instantiation via Pipe Transfer RPC

[Haonan Hou <haonan () apache org>]

Severity: important 

Affected versions:

- Apache IoTDB 1.0.0 before 2.0.10

Description:

Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection') vulnerability in Apache IoTDB.
The pipe processor reads a fully
qualified Java class name and
instantiates it using Class.forName().newInstance() without any
validation or allowlisting.


This issue affects Apache IoTDB: from 1.0.0 before 2.0.10.

Users are recommended to upgrade to version 2.0.10, which fixes the issue.

Credit:

Andrea Cosentino (finder)

References:

https://iotdb.apache.org
https://www.cve.org/CVERecord?id=CVE-2026-40008