CVE-2026-111075

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.

CVSS

No CVSS.

References

Link	Resource
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

Configurations

No configuration.

History

21 Oct 2026, 08:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-21 08:16

Updated : 2026-10-26 18:17

NVD link : CVE-2026-111075

Mitre link : CVE-2026-111075

CVE.ORG link : CVE-2026-111075

JSON object : View

Products Affected

No product.

CWE

CWE-125

Out-of-bounds Read

CWE-191

Integer Underflow (Wrap or Wraparound)

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