Vulnerability Description
In Eclipse OpenJ9 versions prior to 0.63.0, the JITServer component fails to perform cross-field validation on attacker-controlled `_size`, `_paddingSize`, and `_dataOffset` fields during `DataDescriptor` message deserialization. An unauthenticated remote attacker can send a crafted network payload that triggers an unsigned integer underflow in `DataDescriptor::getPayloadSize()` and `DataDescriptor::getNextDescriptor()`. This results in an out-of-bounds heap read and an immediate process crash (SIGSEGV), causing a denial of service.
Related Weaknesses (CWE)
References
- https://github.com/eclipse-openj9/openj9/pull/25009
- https://gitlab.eclipse.org/security/cve-assignment/-/work_items/423
- https://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/941
FAQ
What is CVE-2026-111075?
CVE-2026-111075 is a documented vulnerability. In Eclipse OpenJ9 versions prior to 0.63.0, the JITServer component fails to perform cross-field validation on attacker-controlled `_size`, `_paddingSize`, and `_dataOffset` fields during `DataDescrip...
How severe is CVE-2026-111075?
CVSS scoring is not yet available for CVE-2026-111075. Check NVD for updates.
Is there a patch for CVE-2026-111075?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.