CVE-2026-18620 (GCVE-0-2026-18620)

Vulnerability from cvelistv5 – Published: 2026-08-10 20:45 – Updated: 2026-08-11 04:41
VLAI
Title
Data-sciences-pipeline: user-controlled serviceaccount for workflow pods without authorization check — confused deputy
Summary
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.
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
URL Tags
https://access.redhat.com/errata/RHSA-2026:53263 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-18620 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2510320 issue-trackingx_refsource_REDHAT
Impacted products
Vendor Product Version
Red Hat Red Hat OpenShift AI 3.3 Unaffected: 1785187920 , < * (rpm)
    cpe:/a:redhat:openshift_ai:3.3::el9
Create a notification for this product.
Date Public
2026-08-10 18:50
Show details on NVD website

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          "packageName": "rhoai/odh-ml-pipelines-api-server-v2-rhel9",
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          "vendor": "Red Hat",
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        }
      ],
      "metrics": [
        {
          "other": {
            "content": {
              "namespace": "https://access.redhat.com/security/updates/classification/",
              "value": "Moderate"
            },
            "type": "Red Hat severity rating"
          }
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            "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"
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        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
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          "tags": [
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        },
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            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/security/cve/CVE-2026-18620"
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          "tags": [
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          "time": "2026-08-03T07:52:01.604Z",
          "value": "Reported to Red Hat."
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          "lang": "en",
          "time": "2026-08-10T18:50:13.305Z",
          "value": "Made public."
        }
      ],
      "title": "Data-sciences-pipeline: user-controlled serviceaccount for workflow pods without authorization check \u2014 confused deputy",
      "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."
        }
      ],
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        "engine": "cvelib 1.8.0"
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    }
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    "assignerShortName": "redhat",
    "cveId": "CVE-2026-18620",
    "datePublished": "2026-08-10T20:45:43.411Z",
    "dateReserved": "2026-08-03T07:57:49.907Z",
    "dateUpdated": "2026-08-11T04:41:50.408Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-18620\",\"sourceIdentifier\":\"secalert@redhat.com\",\"published\":\"2026-08-10T21:17:20.490\",\"lastModified\":\"2026-08-11T05:17:13.107\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"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\u0027 pods.\"}],\"affected\":[{\"source\":\"secalert@redhat.com\",\"affectedData\":[{\"vendor\":\"Red Hat\",\"product\":\"Red Hat OpenShift AI 3.3\",\"defaultStatus\":\"affected\",\"collectionURL\":\"https://catalog.redhat.com/software/containers/\",\"packageName\":\"rhoai/odh-ml-pipelines-api-server-v2-rhel9\",\"cpes\":[\"cpe:/a:redhat:openshift_ai:3.3::el9\"],\"versions\":[{\"version\":\"1785187920\",\"lessThan\":\"*\",\"versionType\":\"rpm\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"secalert@redhat.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N\",\"baseScore\":7.1,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.8,\"impactScore\":4.2}]},\"weaknesses\":[{\"source\":\"secalert@redhat.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-639\"}]}],\"references\":[{\"url\":\"https://access.redhat.com/errata/RHSA-2026:53263\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://access.redhat.com/security/cve/CVE-2026-18620\",\"source\":\"secalert@redhat.com\"},{\"url\":\"https://bugzilla.redhat.com/show_bug.cgi?id=2510320\",\"source\":\"secalert@redhat.com\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-11T04:41:45+00:00",
      "cve": "CVE-2026-18620",
      "id": "CVE-2026-18620",
      "initial_release_date": "2026-08-10T18:50:13.305000+00:00",
      "product_status:fixed": "3",
      "product_status:known_not_affected": "94",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "data-sciences-pipeline: User-controlled ServiceAccount for workflow pods without authorization check \u2014 confused deputy",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-18620.json",
      "version": "3"
    }
  }
}



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