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    "cveMetadata": {
        "cveId": "CVE-2026-111074",
        "assignerOrgId": "e51fbebd-6053-4e49-959f-1b94eeb69a2c",
        "state": "PUBLISHED",
        "assignerShortName": "eclipse",
        "dateReserved": "2026-10-15T13:44:42.349Z",
        "datePublished": "2026-10-21T07:57:16.912Z",
        "dateUpdated": "2026-10-26T17:57:35.098Z"
    },
    "containers": {
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                "orgId": "e51fbebd-6053-4e49-959f-1b94eeb69a2c",
                "shortName": "eclipse",
                "dateUpdated": "2026-10-21T07:57:16.912Z"
            },
            "title": "JITServer: Pre-authentication remote Denial of Service via integer overflow infinite loop in MessageBuffer::computeRequiredCapacity()",
            "problemTypes": [
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                    "descriptions": [
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                            "lang": "en",
                            "cweId": "CWE-190",
                            "description": "CWE-190",
                            "type": "CWE"
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                    ]
                },
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "cweId": "CWE-835",
                            "description": "CWE-835",
                            "type": "CWE"
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                    ]
                }
            ],
            "impacts": [
                {
                    "capecId": "CAPEC-128",
                    "descriptions": [
                        {
                            "lang": "en",
                            "value": "CAPEC-128"
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                    ]
                },
                {
                    "capecId": "CAPEC-119",
                    "descriptions": [
                        {
                            "lang": "en",
                            "value": "CAPEC-119"
                        }
                    ]
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            ],
            "affected": [
                {
                    "vendor": "Eclipse Foundation",
                    "product": "Eclipse OpenJ9",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "0.8.0",
                            "lessThan": "0.63",
                            "versionType": "semver"
                        }
                    ],
                    "defaultStatus": "unaffected"
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            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "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.",
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                            "value": "<p>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.</p>"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://github.com/eclipse-openj9/openj9/pull/25008"
                },
                {
                    "url": "https://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/940"
                },
                {
                    "url": "https://gitlab.eclipse.org/security/cve-assignment/-/work_items/422"
                }
            ],
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                    "format": "CVSS",
                    "scenarios": [
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                            "lang": "en",
                            "value": "GENERAL"
                        }
                    ],
                    "cvssV4_0": {
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "attackRequirements": "NONE",
                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "NONE",
                        "subConfidentialityImpact": "NONE",
                        "vulnIntegrityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "vulnAvailabilityImpact": "HIGH",
                        "subAvailabilityImpact": "NONE",
                        "exploitMaturity": "NOT_DEFINED",
                        "Safety": "NOT_DEFINED",
                        "Automatable": "NOT_DEFINED",
                        "Recovery": "NOT_DEFINED",
                        "valueDensity": "NOT_DEFINED",
                        "vulnerabilityResponseEffort": "NOT_DEFINED",
                        "providerUrgency": "NOT_DEFINED",
                        "version": "4.0",
                        "baseSeverity": "HIGH",
                        "baseScore": 8.7,
                        "vectorString": "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"
                    }
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "Duc Anh Nguyen (VinSOC) - mra9797@gmail.com",
                    "type": "finder"
                }
            ],
            "source": {
                "discovery": "UNKNOWN"
            },
            "x_generator": {
                "engine": "Vulnogram 1.0.5"
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        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "id": "CVE-2026-111074",
                                "role": "CISA Coordinator",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
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                                        "Automatable": "yes"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "version": "2.0.3",
                                "timestamp": "2026-10-26T17:35:45.100923Z"
                            }
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                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-10-26T17:57:35.098Z"
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    }
}