FKIE_CVE-2026-42296

Vulnerability from fkie_nvd - Published: 2026-05-09 04:16 - Updated: 2026-07-24 21:10
Severity
8.1 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
8.1 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Summary
Argo Workflows is an open source container-native workflow engine for orchestrating parallel jobs on Kubernetes. Prior to versions 3.7.14 and 4.0.5, a user with create Workflow permission can bypass templateReferencing: Strict to get host network access, switch service accounts, override pod security context, add tolerations to schedule on control-plane nodes, or enable SA token mounting. This defeats the stated purpose of the feature. The practical impact depends on what Kubernetes-level controls are in place. Clusters with PodSecurity admission or OPA/Gatekeeper would independently block some of these (like hostNetwork). Clusters that rely on Argo's Strict mode as the primary enforcement layer are fully exposed. This issue has been patched in versions 3.7.14 and 4.0.5.
References
security-advisories@github.comhttps://github.com/argoproj/argo-workflows/commit/534f4ff1cbd86908e8ff76d97d553ad5a49a950dPatch
security-advisories@github.comhttps://github.com/argoproj/argo-workflows/releases/tag/v3.7.14Release Notes
security-advisories@github.comhttps://github.com/argoproj/argo-workflows/releases/tag/v4.0.5Release Notes
security-advisories@github.comhttps://github.com/argoproj/argo-workflows/security/advisories/GHSA-3775-99mw-8rp4Exploit, Mitigation, Vendor Advisory
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://access.redhat.com/security/cve/CVE-2026-42296
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://bugzilla.redhat.com/show_bug.cgi?id=2468446
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/argoproj/argo-workflows/security/advisories/GHSA-3775-99mw-8rp4Exploit, Mitigation, Vendor Advisory
0b0ca135-0b70-47e7-9f44-1890c2a1c46chttps://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42296.json
Impacted products
Vendor Product Version
argoproj argo_workflows *
argoproj argo_workflows *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "argo-workflows",
          "vendor": "argoproj",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 3.7.14"
            },
            {
              "status": "affected",
              "version": "\u003e= 4.0.0, \u003c 4.0.5"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    },
    {
      "affectedData": [
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          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:openshift_ai"
          ],
          "defaultStatus": "affected",
          "packageName": "rhoai/odh-data-science-pipelines-argo-argoexec-rhel9",
          "product": "Red Hat OpenShift AI (RHOAI)",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:openshift_ai"
          ],
          "defaultStatus": "affected",
          "packageName": "rhoai/odh-data-science-pipelines-argo-workflowcontroller-rhel9",
          "product": "Red Hat OpenShift AI (RHOAI)",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:openshift_ai"
          ],
          "defaultStatus": "affected",
          "packageName": "rhoai/odh-ml-pipelines-api-server-v2-rhel9",
          "product": "Red Hat OpenShift AI (RHOAI)",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:openshift_ai"
          ],
          "defaultStatus": "affected",
          "packageName": "rhoai/odh-ml-pipelines-driver-rhel9",
          "product": "Red Hat OpenShift AI (RHOAI)",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:openshift_ai"
          ],
          "defaultStatus": "affected",
          "packageName": "rhoai/odh-ml-pipelines-launcher-rhel9",
          "product": "Red Hat OpenShift AI (RHOAI)",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:openshift_ai"
          ],
          "defaultStatus": "affected",
          "packageName": "rhoai/odh-ml-pipelines-persistenceagent-v2-rhel9",
          "product": "Red Hat OpenShift AI (RHOAI)",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:openshift_ai"
          ],
          "defaultStatus": "affected",
          "packageName": "rhoai/odh-ml-pipelines-scheduledworkflow-v2-rhel9",
          "product": "Red Hat OpenShift AI (RHOAI)",
          "vendor": "Red Hat"
        }
      ],
      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:argoproj:argo_workflows:*:*:*:*:*:go:*:*",
              "matchCriteriaId": "A2883DF4-7751-4133-BB8B-02F2DF7D50D1",
              "versionEndExcluding": "3.7.14",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:argoproj:argo_workflows:*:*:*:*:*:go:*:*",
              "matchCriteriaId": "675D5F2B-A490-42EB-B1A1-0CE05D2BB4CF",
              "versionEndExcluding": "4.0.5",
              "versionStartIncluding": "4.0.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Argo Workflows is an open source container-native workflow engine for orchestrating parallel jobs on Kubernetes. Prior to versions 3.7.14 and 4.0.5, a user with create Workflow permission can bypass templateReferencing: Strict to get host network access, switch service accounts, override pod security context, add tolerations to schedule on control-plane nodes, or enable SA token mounting. This defeats the stated purpose of the feature. The practical impact depends on what Kubernetes-level controls are in place. Clusters with PodSecurity admission or OPA/Gatekeeper would independently block some of these (like hostNetwork). Clusters that rely on Argo\u0027s Strict mode as the primary enforcement layer are fully exposed. This issue has been patched in versions 3.7.14 and 4.0.5."
    },
    {
      "lang": "es",
      "value": "Argo Workflows es un motor de flujo de trabajo de c\u00f3digo abierto nativo de contenedores para orquestar trabajos paralelos en Kubernetes. Antes de las versiones 3.7.14 y 4.0.5, un usuario con permiso para crear flujos de trabajo (Workflow) puede eludir templateReferencing: Strict para obtener acceso a la red del host, cambiar cuentas de servicio, anular el contexto de seguridad del pod, a\u00f1adir tolerancias para programar en nodos del plano de control, o habilitar el montaje de tokens de SA. Esto anula el prop\u00f3sito declarado de la caracter\u00edstica. El impacto pr\u00e1ctico depende de los controles a nivel de Kubernetes que est\u00e9n implementados. Los cl\u00fasteres con admisi\u00f3n de PodSecurity o OPA/Gatekeeper bloquear\u00edan independientemente algunos de estos (como hostNetwork). Los cl\u00fasteres que dependen del modo Strict de Argo como capa de aplicaci\u00f3n principal est\u00e1n completamente expuestos. Este problema ha sido parcheado en las versiones 3.7.14 y 4.0.5."
    }
  ],
  "id": "CVE-2026-42296",
  "lastModified": "2026-07-24T21:10:00.143",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 8.1,
          "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:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.2,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 8.1,
          "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:N",
          "version": "3.1"
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        "impactScore": 5.2,
        "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
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          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-05-12T17:51:11.816105Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-05-09T04:16:25.563",
  "references": [
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      "tags": [
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      ],
      "url": "https://github.com/argoproj/argo-workflows/commit/534f4ff1cbd86908e8ff76d97d553ad5a49a950d"
    },
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      "tags": [
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    },
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      "tags": [
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    },
    {
      "source": "security-advisories@github.com",
      "tags": [
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        "Mitigation",
        "Vendor Advisory"
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    },
    {
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      "tags": [
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      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42296.json"
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  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
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          "lang": "en",
          "value": "CWE-863"
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      "source": "security-advisories@github.com",
      "type": "Secondary"
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      "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
      "type": "Secondary"
    }
  ]
}



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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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