CVE-2026-16440: Eclipse Foundation Eclipse OPENJ9

Medium severity, CVSS 5.7. EPSS: 0.2% chance of exploitation in the next 30 days.

In Eclipse OpenJ9 versions up to 0.60, a crafted .class file with deeply nested annotations causes a segmentation fault.

Affected products

• Eclipse Foundation Eclipse OPENJ9: from 0.8.0, before 0.60 (fixed in 0.60)

Published 2026-08-19. Last modified 2026-09-01.