Critical severity · published Jul 10, 2026
CVE-2026-40008
Apache IoTDB: Arbitrary Class Instantiation via Pipe Transfer RPC
9.8
CVSS
0.6%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 48% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AI
Apache IoTDB · Apache Software Foundation
1.0.0 before 2.0.10 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-40008
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-40008
lists.apache.org
https://lists.apache.org/thread/fm8cpvzbox2qqy99ztglm8wkk1nrg9ng
www.openwall.com
http://www.openwall.com/lists/oss-security/2026/07/10/5
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