Quick answers
- Is CVE-2026-40008 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-40008 being exploited in the wild.
- How severe is CVE-2026-40008?
- Informational severity, published 10 July 2026.
- Which products and versions are affected?
- Apache Software Foundation IoTDB 1.0.0 to 2.0.9.
- Is there a fix for CVE-2026-40008?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-40008 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-40008?
- Check whether you run Apache Software Foundation IoTDB at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
An 'Unsafe Reflection' vulnerability (CWE-470) exists in the Apache IoTDB pipe processor. The component accepts a fully qualified Java class name from an external source and instantiates it using Class.forName().newInstance() without performing any validation or maintaining an allowlist of permitted classes. An attacker with the ability to provide input to the pipe processor can trigger the instantiation of arbitrary classes available on the application's classpath, potentially leading to remote code execution (RCE). The vulnerability is addressed in version 2.0.10.
Affected products
- Apache IoTDB 1.0.0 to 2.0.9
Timeline
- 2026-07-10: advisory: Vulnerability disclosed by Apache Software Foundation
- 2026-07-10: disclosed