CVE-2026-111074: Eclipse OpenJ9 0.8.0 to before 0.63

Affected technology

Eclipse OpenJ9 · 0.8.0 to before 0.63
Eclipse Foundation

Description’s affected range: versions prior to 0.63.0, the JITServer component

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 4.0): Network (remote) · No privileges required · No user interaction required

What an attacker can do

An unauthenticated remote attacker can exploit this by opening a small number of crafted TCP connections to exhaust the entire worker thread pool, silently halting compilation services for all connected client JVMs. Vendor/CNA’s CVSS 4.0 assessment (base score 8.7/10) rates confidentiality and integrity impact as none; availability impact as high.