OCTOBER 10, 2026
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Case File

CVE-2026-70410

HIGH · CVSS 8.8 EPSS 0.64%

Source: NVD + CISA KEV + EPSS · Published 2026-09-22 · Last synced 2026-10-10

CyberRota Analysis

AI-Generated

Apache Calcite Avatica is vulnerable due to unsafe reflection in its plugin instantiation methods, allowing arbitrary class initialization through unrestricted calls to Class.forName(String). This could potentially lead to the execution of static initializer blocks in classes present in the classpath, posing a risk of code execution. Organizations using versions prior to 1.29.0 should prioritize upgrading to mitigate this vulnerability, although the immediate threat level is considered low.

CVE
CVE-2026-70410
Severity
HIGH
CVSS
8.8
EPSS
0.64%
Apache

Original NVD 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.