Vulnerability Description
In Eclipse OpenJ9 versions prior to 0.63.0, the JITServer component is vulnerable to a pre-authentication remote denial of service. When processing the initial 4-byte length field of an incoming TCP connection, an integer overflow in `MessageBuffer::computeRequiredCapacity()` causes the receiving compilation worker thread to enter an infinite loop consuming ~100% CPU. 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.
Related Weaknesses (CWE)
References
- https://github.com/eclipse-openj9/openj9/pull/25008
- https://gitlab.eclipse.org/security/cve-assignment/-/work_items/422
- https://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/940
FAQ
What is CVE-2026-111074?
CVE-2026-111074 is a documented vulnerability. In Eclipse OpenJ9 versions prior to 0.63.0, the JITServer component is vulnerable to a pre-authentication remote denial of service. When processing the initial 4-byte length field of an incoming TCP c...
How severe is CVE-2026-111074?
CVSS scoring is not yet available for CVE-2026-111074. Check NVD for updates.
Is there a patch for CVE-2026-111074?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.