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2026年10月19日

CVE-2026-71253 – Use of Externally-Controlled Input to Select Classes or Code (‘Unsafe Reflection’) vulnera

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Use of Externally-Controlled Input to Select Classes or Code (‘Unsafe Reflection’) vulnerability in Apache Johnzon.

ClassConverter loads & static-initializes an attacker-named class from untrusted JSON.

This issue affects Apache Johnzon: from 1.0.0 before 2.2.0.

Users are recommended to upgrade to version 1.3.1 (javax namespace) or 2.2.0 (jakarta specification namespace), which fixes the issue.