Apache IoTDB RPC DoS via Malformed Thrift Frame (1.3.8, 2.0.9)
CVE-2026-44630 Published on August 10, 2026
Apache IoTDB: RPC service denial of service via unchecked Thrift string length
Improper validation of length fields in the Apache IoTDB RPC service may allow a remote unauthenticated attacker to cause a denial of service. By sending a crafted malformed Thrift frame, an attacker can cause IoTDB to allocate an excessive amount of memory and crash with an OutOfMemoryError.
This issue affects Apache IoTDB: before 1.3.8, from 2.0.0 before 2.0.9.
Users are recommended to upgrade to version 2.0.10, which fixes the issue.
Weakness Types
What is a Stack Exhaustion Vulnerability?
The product allocates memory based on an untrusted, large size value, but it does not ensure that the size is within expected limits, allowing arbitrary amounts of memory to be allocated.
CVE-2026-44630 has been classified to as a Stack Exhaustion vulnerability or weakness.
What is a Resource Exhaustion Vulnerability?
The software does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.
CVE-2026-44630 has been classified to as a Resource Exhaustion vulnerability or weakness.
Products Associated with CVE-2026-44630
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Affected Versions
Apache Software Foundation Apache IoTDB:- Before 1.3.8 is affected.
- Version 2.0.0 and below 2.0.10 is affected.