CVE-2026-18618
Full vulnerability record from the local CVENow database.
Description
A flaw was found in ml-metadata. The statically-linked gRPC stack in ml-metadata is outdated, making it vulnerable to known HTTP/2 denial of service (DoS) issues. An in-cluster attacker, with network access to the MLMD pod, could exploit these vulnerabilities by sending specially crafted HTTP/2 requests. This could lead to a denial of service by crashing the MLMD pod, disrupting all pipeline runs in the affected namespace.
Severity
HIGH
CVSS score
7.5
(v3.1)
Vulnerability status
Awaiting Analysis
Source identifier
Published
2026-08-10 21:17:20.370000
Last modified
2026-10-19 12:17:04.003000
View original CVE JSON
{
"id": "CVE-2026-18618",
"sourceIdentifier": "[email protected]",
"published": "2026-08-10T21:17:20.370",
"lastModified": "2026-10-19T12:17:04.003",
"vulnStatus": "Awaiting Analysis",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A flaw was found in ml-metadata. The statically-linked gRPC stack in ml-metadata is outdated, making it vulnerable to known HTTP/2 denial of service (DoS) issues. An in-cluster attacker, with network access to the MLMD pod, could exploit these vulnerabilities by sending specially crafted HTTP/2 requests. This could lead to a denial of service by crashing the MLMD pod, disrupting all pipeline runs in the affected namespace."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "Red Hat",
"product": "Red Hat OpenShift AI 2.25",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "rhoai/odh-mlmd-grpc-server-rhel9",
"cpes": [
"cpe:/a:redhat:openshift_ai:2.25::el9"
],
"versions": [
{
"version": "1785260280",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat OpenShift AI 3.3",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "rhoai/odh-mlmd-grpc-server-rhel9",
"cpes": [
"cpe:/a:redhat:openshift_ai:3.3::el9"
],
"versions": [
{
"version": "1785262015",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat OpenShift AI 3.4",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "rhoai/odh-mlmd-grpc-server-rhel9",
"cpes": [
"cpe:/a:redhat:openshift_ai:3.4::el9"
],
"versions": [
{
"version": "1785269945",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat OpenShift AI 3.4",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "rhoai/odh-mlmd-grpc-server-rhel9",
"cpes": [
"cpe:/a:redhat:openshift_ai:3.4::el9"
],
"versions": [
{
"version": "1791865241",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat OpenShift AI 3.5",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "rhoai/odh-latency-predictor-prediction-rhel9",
"cpes": [
"cpe:/a:redhat:openshift_ai:3.5::el9"
],
"versions": [
{
"version": "1786552271",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
},
{
"vendor": "Red Hat",
"product": "Red Hat OpenShift AI 3.5",
"defaultStatus": "affected",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"packageName": "rhoai/odh-latency-predictor-training-rhel9",
"cpes": [
"cpe:/a:redhat:openshift_ai:3.5::el9"
],
"versions": [
{
"version": "1786552250",
"lessThan": "*",
"versionType": "rpm",
"status": "unaffected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 3.9,
"impactScore": 3.6
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-08-11T15:34:51.548217Z",
"id": "CVE-2026-18618",
"options": [
{
"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "[email protected]",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-770"
}
]
}
],
"references": [
{
"url": "https://access.redhat.com/errata/RHSA-2026:53261",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:53262",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:53263",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:60367",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:84734",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/security/cve/CVE-2026-18618",
"source": "[email protected]"
},
{
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2510313",
"source": "[email protected]"
}
]
}