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CVE-2026-111074

8.7 high SSVC exploitation: none Published
NVD · CVE.org

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.

Fix

Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.

Change history 4

  1. StatusAwaiting Analysis → PublishedNVD modified 2026-10-26 17:57
  2. StatusPublished → Awaiting AnalysisNVD modified 2026-10-22 17:21
  3. StatusReceived → PublishedNVD modified 2026-10-21 07:57
  4. First seenCVSS 8.7NVD modified 2026-10-21 08:16

Affected (CPE criteria) 0

NVD has not attached CPE configurations yet.

References 3