{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-18620", "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "state": "PUBLISHED", "assignerShortName": "redhat", "dateReserved": "2026-08-03T07:57:49.907Z", "datePublished": "2026-08-10T20:45:43.411Z", "dateUpdated": "2026-08-10T20:45:43.411Z"}, "containers": {"cna": {"title": "Data-sciences-pipeline: user-controlled serviceaccount for workflow pods without authorization check \u2014 confused deputy", "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": "NONE", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N", "version": "3.1"}, "format": "CVSS"}], "descriptions": [{"lang": "en", "value": "A flaw was found in Data Science Pipelines. A restricted user, or tenant, can exploit an improper authorization vulnerability in the setDefaultServiceAccount function. By specifying a more privileged ServiceAccount (SA) during a CreateRun request, an attacker can bypass authorization checks. This allows the tenant to run their containers with elevated privileges, potentially leading to the disclosure of sensitive information (secrets) and the ability to execute commands within other users' pods."}], "affected": [{"vendor": "Red Hat", "product": "Red Hat OpenShift AI (RHOAI)", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "rhoai/odh-ml-pipelines-api-server-v2-rhel9", "defaultStatus": "unknown", "cpes": ["cpe:/a:redhat:openshift_ai"]}], "references": [{"url": "https://access.redhat.com/security/cve/CVE-2026-18620", "tags": ["vdb-entry", "x_refsource_REDHAT"]}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2510320", "name": "RHBZ#2510320", "tags": ["issue-tracking", "x_refsource_REDHAT"]}], "datePublic": "2026-08-10T18:50:13.305Z", "problemTypes": [{"descriptions": [{"cweId": "CWE-639", "description": "Authorization Bypass Through User-Controlled Key", "lang": "en", "type": "CWE"}]}], "x_redhatCweChain": "CWE-639: Authorization Bypass Through User-Controlled Key", "workarounds": [{"lang": "en", "value": "To mitigate this issue, operators of Red Hat OpenShift AI should configure an allow-list for ServiceAccounts that tenants can specify in their workflow run requests. Restricting the available ServiceAccounts to a predefined, least-privileged set, such as the default `pipeline-runner` only, will prevent unauthorized privilege escalation. This configuration change should be applied to the API server responsible for processing workflow run requests. New workflow runs will respect the updated configuration."}], "timeline": [{"lang": "en", "time": "2026-08-03T07:52:01.604Z", "value": "Reported to Red Hat."}, {"lang": "en", "time": "2026-08-10T18:50:13.305Z", "value": "Made public."}], "providerMetadata": {"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat", "dateUpdated": "2026-08-10T20:45:43.411Z"}, "x_generator": {"engine": "cvelib 1.8.0"}}}}

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{"bugzilla": {"description": "data-sciences-pipeline: User-controlled ServiceAccount for workflow pods without authorization check \u2014 confused deputy", "id": "2510320", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2510320"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.1", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N", "status": "draft"}, "cwe": "CWE-639", "details": ["A flaw was found in Data Science Pipelines. A restricted user, or tenant, can exploit an improper authorization vulnerability in the setDefaultServiceAccount function. By specifying a more privileged ServiceAccount (SA) during a CreateRun request, an attacker can bypass authorization checks. This allows the tenant to run their containers with elevated privileges, potentially leading to the disclosure of sensitive information (secrets) and the ability to execute commands within other users' pods."], "mitigation": {"lang": "en:us", "value": "To mitigate this issue, operators of Red Hat OpenShift AI should configure an allow-list for ServiceAccounts that tenants can specify in their workflow run requests. Restricting the available ServiceAccounts to a predefined, least-privileged set, such as the default `pipeline-runner` only, will prevent unauthorized privilege escalation. This configuration change should be applied to the API server responsible for processing workflow run requests. New workflow runs will respect the updated configuration."}, "name": "CVE-2026-18620", "package_state": [{"cpe": "cpe:/a:redhat:openshift_ai", "fix_state": "Under investigation", "package_name": "rhoai/odh-ml-pipelines-api-server-v2-rhel9", "product_name": "Red Hat OpenShift AI (RHOAI)"}], "public_date": "2026-08-10T18:50:13Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-18620\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-18620"], "statement": "This Moderate severity flaw in Red Hat OpenShift AI allows a restricted tenant to execute workflow pods with elevated privileges. By manipulating the `service_account` field in a `CreateRun` request, an attacker can bypass authorization checks and utilize more privileged ServiceAccounts, potentially leading to unauthorized access to secrets and execution within co-tenant pods. This risk arises from the API server's failure to perform a SubjectAccessReview for the requested ServiceAccount.", "threat_severity": "Moderate"}

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