{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-18951","assignerOrgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","state":"PUBLISHED","assignerShortName":"redhat","dateReserved":"2026-08-05T13:41:38.511Z","datePublished":"2026-08-10T20:45:10.112Z","dateUpdated":"2026-08-12T17:30:08.494Z"},"containers":{"cna":{"title":"Odh-training-operator-rhel9: [trainer v2 security] trn-02: rhoai overlay aggregates trainjobs crud into standard edit clusterrole","metrics":[{"other":{"content":{"value":"Critical","namespace":"https://access.redhat.com/security/updates/classification/"},"type":"Red Hat severity rating"}},{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"format":"CVSS"}],"descriptions":[{"lang":"en","value":"A flaw was found in the Red Hat OpenShift AI (RHOAI) overlay for the training operator. The RHOAI overlay incorrectly aggregates `trainjobs` management permissions into the native Kubernetes `edit ClusterRole`. This allows any user with `edit ClusterRole` permissions in a namespace to create, modify, and delete `TrainJobs`. When combined with a separate vulnerability (TRN-01) that permits arbitrary pod configurations, a remote attacker with namespace editor privileges could exploit this to escalate privileges, potentially leading to arbitrary code execution."}],"affected":[{"vendor":"Red Hat","product":"Red Hat OpenShift AI 3.3","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"rhoai/odh-training-operator-rhel9","defaultStatus":"affected","versions":[{"version":"1785188461","lessThan":"*","versionType":"rpm","status":"unaffected"}],"cpes":["cpe:/a:redhat:openshift_ai:3.3::el9"]},{"vendor":"Red Hat","product":"Red Hat OpenShift AI 3.4","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"rhoai/odh-training-operator-rhel9","defaultStatus":"affected","versions":[{"version":"1784814352","lessThan":"*","versionType":"rpm","status":"unaffected"}],"cpes":["cpe:/a:redhat:openshift_ai:3.4::el9"]}],"references":[{"url":"https://access.redhat.com/errata/RHSA-2026:53262","name":"RHSA-2026:53262","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:53263","name":"RHSA-2026:53263","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-18951","tags":["vdb-entry","x_refsource_REDHAT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2511187","name":"RHBZ#2511187","tags":["issue-tracking","x_refsource_REDHAT"]}],"datePublic":"2026-08-10T18:54:28.946Z","workarounds":[{"lang":"en","value":"Administrators should review and adjust their Kubernetes RBAC configurations within Red Hat OpenShift AI to ensure that `trainjobs` permissions are explicitly managed. This involves removing `trainjobs` from the `aggregate-to-edit` ClusterRole labels or requiring explicit `RoleBinding` for `trainjobs` access. This prevents implicit permission grants to namespace editors and reduces the attack surface. Consult Kubernetes documentation for specific instructions on modifying ClusterRoles and RoleBindings. A restart or reload of affected components may be required for changes to take effect."}],"timeline":[{"lang":"en","time":"2026-08-04T19:04:31.363Z","value":"Reported to Red Hat."},{"lang":"en","time":"2026-08-10T18:54:28.946Z","value":"Made public."}],"providerMetadata":{"orgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","shortName":"redhat","dateUpdated":"2026-08-11T18:39:07.124Z"},"x_generator":{"engine":"cvelib 1.8.0"}},"adp":[{"problemTypes":[{"descriptions":[{"type":"CWE","cweId":"CWE-284","lang":"en","description":"CWE-284 Improper Access Control"}]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-12T15:36:35.639296Z","id":"CVE-2026-18951","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-08-12T17:30:08.494Z"}}]}}