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CVE PROGRAM SOURCE RECORD9.8 Critical

CVE-2026-71253

Apache Johnzon: ClassConverter loads & static-initializes an attacker-named class from untrusted JSON

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Status
Published
Published
Updated
Assigning organization
apache

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Apache Software Foundation Apache Johnzon

Default version status: unaffected

  • 2.0.0 to < 2.2.0affected
  • 1.0.0 to < 1.3.1affected
pkg:maven/org.apache.johnzon/johnzon-mapper

References