CVE-2026-110938

validating

no check availablenot proven exploitable

cve.orgpublic pockev

Eclipse Foundation Eclipse OpenJ9 >= 0.8.0, < 0.63

fixed in 0.63

CWE-125 Out-of-bounds Read

ETK-2026-2303, permanent identifier

cvss8.7cna vendorCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

55mrunning

differential validationcurrent stage

timeline

0 = trigger signal

trigger signal (cve.org) +0mvalidating

+30min

+60min

+90min

description

Eclipse OpenJ9 JITServer protocol message and reply processing has improper boundary checks. A remote unauthenticated peer, or a malicious JITServer, may cause the JITServer daemon or client JVM to crash by sending malformed network traffic; the vulnerable JITServer communication path must be reachable.

Still under analysis: more detail becomes available as the pipeline runs.

mitigation

Upgrade Eclipse OpenJ9 to version 0.63. Restrict JITServer network access to trusted peers until the upgrade is complete.

fixed in 0.63

check

building now

exploit

not yet

automation

–

auth required

EPSS

–

agent run time

55m

cve.org record, t = 0

2026-10-21 08:03Z

Δ to public poc

–

Δ to kev

–

outcome

Run in progress: no artifact yet.

source signals

Public signals that triggered or updated the pipeline. These are inputs for the deltas above.

2026-10-21 08:03Z
cve_org: trigger signal, started the run
https://www.cve.org/CVERecord?id=CVE-2026-110938

this entry in the feed

GET /api/v1/feed/CVE-2026-110938

{
  "etk_id": "ETK-2026-2303",
  "cve_id": "CVE-2026-110938",
  "display_id": "CVE-2026-110938",
  "ghsa_id": null,
  "euvd_id": null,
  "status": "in_pipeline",
  "anchor_state": "anchored",
  "title": "Improper boundary checks in Eclipse OpenJ9 JITServer",
  "summary": "Eclipse OpenJ9 JITServer protocol message and reply processing has improper boundary checks. A remote unauthenticated peer, or a malicious JITServer, may cause the JITServer daemon or client JVM to crash by sending malformed network traffic; the vulnerable JITServer communication path must be reachable.",
  "mitigation": "Upgrade Eclipse OpenJ9 to version 0.63. Restrict JITServer network access to trusted peers until the upgrade is complete.",
  "vendor": "Eclipse Foundation",
  "product": "Eclipse OpenJ9",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 0.8.0, < 0.63"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "0.63"
      ],
      "package_name": "Eclipse OpenJ9",
      "purl": null
    }
  ],
  "cwes": [
    125
  ],
  "cvss_score": 8.7,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": null,
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": null,
  "t0_at": "2026-10-21T08:03:26.062000+00:00",
  "signals": {
    "trigger_signal": {
      "at": "2026-10-21T08:03:26.062000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-21T08:03:26.062000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-110938"
    }
  }
}

published 2026-10-21 08:53Z
last change 2026-10-21 09:43Z

Need the technical details behind an entry?

Every entry here shows what we attempted and when. The technical details, the generated exploit that fired it and the evidence behind the verdict are not public. Tell us about your use case and we’ll get back to you about extended API access.