CVE-2023-26234: Jd-GUI Project Jd-GUI

Critical severity, CVSS 9.8. EPSS: 0.8% chance of exploitation in the next 30 days.

JD-GUI 1.6.6 allows deserialization via UIMainWindowPreferencesProvider.singleInstance.

Affected products

• Jd-GUI Project Jd-GUI: version 1.6.6 only

Published 2023-02-21. Last modified 2026-06-17.