CVE-2026-70410: CWE-470 Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection') in Apache Software Foundation Apache Calcite Avatica
Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection') vulnerability in Apache Calcite Avatica. Plugin instantiation (via AvaticaUtils#instantiatePlugin and other methods) initializes arbitrary classes via unrestricted calls to Class.forName(String) which by default triggers initialization. This may lead to the execution of static initializer blocks in arbitrary classes present in the classpath. The instantiation APIs should initialize and instantiate only classes implementing the specified plugin interface passed as input in conjunction with the desired classname. At the moment of writing, there are no well-known or widely used classes with dangerous static initializer blocks so the severity is low. This issue affects Apache Calcite Avatica: before 1.29.0. Users are recommended to upgrade to version 1.29.0, which fixes the issue.
CVE-2026-70410: CWE-470 Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection') in Apache Software Foundation Apache Calcite Avatica
Description
Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection') vulnerability in Apache Calcite Avatica. Plugin instantiation (via AvaticaUtils#instantiatePlugin and other methods) initializes arbitrary classes via unrestricted calls to Class.forName(String) which by default triggers initialization. This may lead to the execution of static initializer blocks in arbitrary classes present in the classpath. The instantiation APIs should initialize and instantiate only classes implementing the specified plugin interface passed as input in conjunction with the desired classname. At the moment of writing, there are no well-known or widely used classes with dangerous static initializer blocks so the severity is low. This issue affects Apache Calcite Avatica: before 1.29.0. Users are recommended to upgrade to version 1.29.0, which fixes the issue.
Affected software
Apache Software Foundation
Apache Calcite Avatica
pkg:maven/Apache Software Foundation/org.apache.calcite.avatica:avatica-coreRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apache
- Date Reserved
- 2026-08-04T11:08:06.676Z
- State
- PUBLISHED
Threat ID: 6ab2a344f7a7c5410660e557
Added to database: 09/22/2026, 15:48:20 UTC
Last updated: 09/22/2026, 15:48:20 UTC
Views: 1
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