What’s Vulnerable › Vulnerabilities

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

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-10 · updated 2026-10-25
• Weakness: CWE-470

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.

Affected products

• Apache Software Foundation Apache IoTDB: from 1.0.0 before 2.0.10 — fixed in 2.0.10

How to fix

Upgrade to a fixed version: Apache Software Foundation Apache IoTDB 2.0.10. Check the vendor advisory for mitigations.

References

• https://lists.apache.org/thread/fm8cpvzbox2qqy99ztglm8wkk1nrg9ng
• http://www.openwall.com/lists/oss-security/2026/07/10/5

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