CVE-2026-73098 PUBLISHED

Apache Juneau: Unsafe reflection allows attacker-controlled class initialization during parsing

Assigner: apache
Reserved: 10.08.2026 Published: 05.11.2026 Updated: 05.11.2026

Improper control of dynamically-loaded code vulnerability in Apache Juneau.

When Apache Juneau parses a value into a property of type java.lang.Class (including parameterized forms), the default class swap loaded the named class with initialization enabled, so input naming a class on the application classpath ran that class's static initializer. The impact depends on the classes present in the deployment.

This issue affects Apache Juneau: through 9.2.0.

Users are recommended to upgrade to version 9.2.1, which fixes the issue.

Metrics

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
CVSS Score: 10

Product Status

Vendor Apache Software Foundation
Product Apache Juneau
Versions Default: unaffected
  • affected from 0 to 9.2.1 (excl.)

References

Problem Types

  • CWE-470 Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection') CWE