{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-18618", "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "state": "PUBLISHED", "assignerShortName": "redhat", "dateReserved": "2026-08-03T07:43:02.469Z", "datePublished": "2026-08-10T20:45:38.918Z", "dateUpdated": "2026-08-10T20:45:38.918Z"}, "containers": {"cna": {"title": "Ml-metdata: bundled grpc 1.46.3 (2022) with published http/2 dos cves \u2014 directly reachable on listener", "metrics": [{"other": {"content": {"value": "Moderate", "namespace": "https://access.redhat.com/security/updates/classification/"}, "type": "Red Hat severity rating"}}, {"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "format": "CVSS"}], "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 The statically-linked gRPC stack in ml-metadata is outdated, making it vulnerable to known HTTP/2 denial of service (DoS) issues.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": [{"vendor": "Red Hat", "product": "Red Hat OpenShift AI (RHOAI)", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "rhoai/odh-mlmd-grpc-server-rhel9", "defaultStatus": "unknown", "cpes": ["cpe:/a:redhat:openshift_ai"]}], "references": [{"url": "https://access.redhat.com/security/cve/CVE-2026-18618", "tags": ["vdb-entry", "x_refsource_REDHAT"]}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2510313", "name": "RHBZ#2510313", "tags": ["issue-tracking", "x_refsource_REDHAT"]}], "datePublic": "2026-08-10T18:49:28.768Z", "problemTypes": [{"descriptions": [{"cweId": "CWE-770", "description": "Allocation of Resources Without Limits or Throttling", "lang": "en", "type": "CWE"}]}], "x_redhatCweChain": "CWE-770: Allocation of Resources Without Limits or Throttling", "workarounds": [{"lang": "en", "value": "To mitigate this issue, ensure that network policies are strictly enforced to limit access to the MLMD pod's port 8080. Restrict inbound connections to only essential KFP v2 driver pods and other designated DSP components. This measure reduces the attack surface by limiting potential in-cluster attackers who could exploit the gRPC HTTP/2 denial-of-service vulnerabilities."}], "timeline": [{"lang": "en", "time": "2026-08-03T07:39:55.217Z", "value": "Reported to Red Hat."}, {"lang": "en", "time": "2026-08-10T18:49:28.768Z", "value": "Made public."}], "providerMetadata": {"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat", "dateUpdated": "2026-08-10T20:45:38.918Z"}, "x_generator": {"engine": "cvelib 1.8.0"}}}}

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