CVE-2026-111074

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.

CVSS

No CVSS.

References

Link	Resource
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

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-2026-111074

Mitre link : CVE-2026-111074

CVE.ORG link : CVE-2026-111074

JSON object : View

Products Affected

No product.

CWE

CWE-190

Integer Overflow or Wraparound

CWE-835

Loop with Unreachable Exit Condition ('Infinite Loop')

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