{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-18941", "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "state": "PUBLISHED", "assignerShortName": "redhat", "dateReserved": "2026-08-05T13:24:03.497Z", "datePublished": "2026-08-10T20:44:42.322Z", "dateUpdated": "2026-08-10T20:44:42.322Z"}, "containers": {"cna": {"title": "Feast: feast-operator: feast: default authentication mode is no_auth \u2014 shared multi-tenant instances deployed without authentication", "metrics": [{"other": {"content": {"value": "Important", "namespace": "https://access.redhat.com/security/updates/classification/"}, "type": "Red Hat severity rating"}}, {"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.7, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N", "version": "3.1"}, "format": "CVSS"}], "descriptions": [{"lang": "en", "value": "A flaw was found in Feast and feast-operator. The default configuration for both the Feast SDK and the feast-operator is \"no_auth,\" meaning no security manager is installed. This default allows unauthenticated and unauthorized access to feature-server, registry-server, and offline-server endpoints. A remote attacker, by exploiting this missing authentication, could achieve remote code execution (RCE) by storing a malicious User-Defined Function (UDF) on the feature-server, trigger a denial of service (DoS) by forcing re-materialization of all tenant features, and gain unauthorized access to cross-tenant data."}], "affected": [{"vendor": "Red Hat", "product": "Red Hat OpenShift AI (RHOAI)", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "rhoai/odh-feature-server-rhel9", "defaultStatus": "affected", "cpes": ["cpe:/a:redhat:openshift_ai"]}, {"vendor": "Red Hat", "product": "Red Hat OpenShift AI (RHOAI)", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "rhoai/odh-pipeline-runtime-datascience-cpu-py312-rhel9", "defaultStatus": "unaffected", "cpes": ["cpe:/a:redhat:openshift_ai"]}, {"vendor": "Red Hat", "product": "Red Hat OpenShift AI (RHOAI)", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "rhoai/odh-pipeline-runtime-pytorch-cuda-py312-rhel9", "defaultStatus": "unaffected", "cpes": ["cpe:/a:redhat:openshift_ai"]}, {"vendor": "Red Hat", "product": "Red Hat OpenShift AI (RHOAI)", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "rhoai/odh-pipeline-runtime-pytorch-llmcompressor-cuda-py312-rhel9", "defaultStatus": "unaffected", "cpes": ["cpe:/a:redhat:openshift_ai"]}, {"vendor": "Red Hat", "product": "Red Hat OpenShift AI (RHOAI)", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "rhoai/odh-pipeline-runtime-pytorch-rocm-py312-rhel9", "defaultStatus": "unaffected", "cpes": ["cpe:/a:redhat:openshift_ai"]}, {"vendor": "Red Hat", "product": "Red Hat OpenShift AI (RHOAI)", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "rhoai/odh-pipeline-runtime-tensorflow-cuda-py312-rhel9", "defaultStatus": "unaffected", "cpes": ["cpe:/a:redhat:openshift_ai"]}, {"vendor": "Red Hat", "product": "Red Hat OpenShift AI (RHOAI)", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "rhoai/odh-pipeline-runtime-tensorflow-rocm-py312-rhel9", "defaultStatus": "unaffected", "cpes": ["cpe:/a:redhat:openshift_ai"]}, {"vendor": "Red Hat", "product": "Red Hat OpenShift AI (RHOAI)", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "rhoai/odh-workbench-codeserver-datascience-cpu-py312-rhel9", "defaultStatus": "unaffected", "cpes": ["cpe:/a:redhat:openshift_ai"]}, {"vendor": "Red Hat", "product": "Red Hat OpenShift AI (RHOAI)", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "rhoai/odh-workbench-jupyter-datascience-cpu-py312-rhel9", "defaultStatus": "unaffected", "cpes": ["cpe:/a:redhat:openshift_ai"]}, {"vendor": "Red Hat", "product": "Red Hat OpenShift AI (RHOAI)", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "rhoai/odh-workbench-jupyter-pytorch-cuda-py312-rhel9", "defaultStatus": "unaffected", "cpes": ["cpe:/a:redhat:openshift_ai"]}, {"vendor": "Red Hat", "product": "Red Hat OpenShift AI (RHOAI)", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "rhoai/odh-workbench-jupyter-pytorch-llmcompressor-cuda-py312-rhel9", "defaultStatus": "unaffected", "cpes": ["cpe:/a:redhat:openshift_ai"]}, {"vendor": "Red Hat", "product": "Red Hat OpenShift AI (RHOAI)", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "rhoai/odh-workbench-jupyter-pytorch-rocm-py312-rhel9", "defaultStatus": "affected", "cpes": ["cpe:/a:redhat:openshift_ai"]}, {"vendor": "Red Hat", "product": "Red Hat OpenShift AI (RHOAI)", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "rhoai/odh-workbench-jupyter-tensorflow-cuda-py312-rhel9", "defaultStatus": "affected", "cpes": ["cpe:/a:redhat:openshift_ai"]}, {"vendor": "Red Hat", "product": "Red Hat OpenShift AI (RHOAI)", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "rhoai/odh-workbench-jupyter-tensorflow-rocm-py312-rhel9", "defaultStatus": "affected", "cpes": ["cpe:/a:redhat:openshift_ai"]}], "references": [{"url": "https://access.redhat.com/security/cve/CVE-2026-18941", "tags": ["vdb-entry", "x_refsource_REDHAT"]}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2511116", "name": "RHBZ#2511116", "tags": ["issue-tracking", "x_refsource_REDHAT"]}], "datePublic": "2026-08-10T18:51:18.348Z", "problemTypes": [{"descriptions": [{"cweId": "CWE-306", "description": "Missing Authentication for Critical Function", "lang": "en", "type": "CWE"}]}], "x_redhatCweChain": "CWE-306: Missing Authentication for Critical Function", "workarounds": [{"lang": "en", "value": "To mitigate this vulnerability, configure Feast deployments to utilize Kubernetes RBAC authentication. Ensure that `FeatureStore` Custom Resources (CRs) explicitly define an authentication mechanism other than `no_auth`. For Feast SDK usage, avoid the `no_auth` setting in production environments unless `FEAST_INSECURE_NO_AUTH=1` is explicitly set, acknowledging the security implications. Applying these configuration changes will require a redeployment or restart of the affected Feast services."}], "timeline": [{"lang": "en", "time": "2026-08-04T17:11:26.646Z", "value": "Reported to Red Hat."}, {"lang": "en", "time": "2026-08-10T18:51:18.348Z", "value": "Made public."}], "providerMetadata": {"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat", "dateUpdated": "2026-08-10T20:44:42.322Z"}, "x_generator": {"engine": "cvelib 1.8.0"}}}}

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