{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "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"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2025-26521",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-06-13T00:00:00+00:00",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-06-14T03:56:16.937Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Apache CloudStack",
          "vendor": "Apache Software Foundation",
          "versions": [
            {
              "lessThan": "4.19.3.0",
              "status": "affected",
              "version": "4.17.0.0",
              "versionType": "semver"
            },
            {
              "lessThan": "4.20.1.0",
              "status": "affected",
              "version": "4.20.0.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Wei Zhou (weizhou@apache.org)"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
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              "value": "When an Apache CloudStack user-account creates a CKS-based Kubernetes cluster in a project, the API key and the secret key of the \u0027kubeadmin\u0027 user of the caller account are used to create the secret config in the CKS-based Kubernetes cluster. A member of the project who can access the CKS-based Kubernetes cluster, can also access the API key and secret key of the \u0027kubeadmin\u0027 user of the CKS cluster\u0027s creator\u0027s account. An attacker who\u0027s a member of the project can exploit this to impersonate and perform privileged actions that can result in complete compromise of the confidentiality, integrity, and availability of resources owned by the creator\u0027s account.\u003cbr\u003e\u003cbr\u003eCKS users are recommended to upgrade to version 4.19.3.0 or 4.20.1.0, which fixes this issue.\u003ch3\u003eUpdating Existing Kubernetes Clusters in Projects\u003c/h3\u003eA \u003cb\u003eservice account\u003c/b\u003e should be created for each project to provide limited access specifically for Kubernetes cluster providers and autoscaling. Follow the steps below to create a new service account, update the secret inside the cluster, and regenerate existing API and service keys:\u003ch3\u003e1. Create a New Service Account\u003c/h3\u003e\u003cdiv\u003eCreate a new account using the role \u003cb\u003e\"Project Kubernetes Service Role\"\u003c/b\u003e with the following details:\u003c/div\u003e\u003cdiv\u003e\u003ctable\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd\u003e\u003cb\u003eAccount Name\u003c/b\u003e\u003cbr\u003e\u003c/td\u003e\u003ctd\u003ekubeadmin-\u0026lt;FIRST_EIGHT_CHARACTERS_OF_PROJECT_ID\u0026gt;\u003cbr\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e\u003cb\u003eFirst Name\u003c/b\u003e\u003cbr\u003e\u003c/td\u003e\u003ctd\u003eKubernetes\u003cbr\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e\u003cb\u003eLast Name\u003c/b\u003e\u003cbr\u003e\u003c/td\u003e\u003ctd\u003eService User\u003cbr\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e\u003cb\u003eAccount Type\u003c/b\u003e\u003cbr\u003e\u003c/td\u003e\u003ctd\u003e0 (Normal User)\u003cbr\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e\u003cb\u003eRole ID\u003c/b\u003e\u003cbr\u003e\u003c/td\u003e\u003ctd\u003e\u0026lt;ID_OF_SERVICE_ROLE\u0026gt;\u003cbr\u003e\u003c/td\u003e\u003c/tr\u003e\u003c/tbody\u003e\u003c/table\u003e\u003cbr\u003e\u003c/div\u003e\u003ch3\u003e2. Add the Service Account to the Project\u003c/h3\u003eAdd this account to the \u003cb\u003eproject\u003c/b\u003e where the Kubernetes cluster(s) are hosted.\u003cbr\u003e\u003ch3\u003e3. Generate API and Secret Keys\u003c/h3\u003eGenerate \u003cb\u003eAPI Key\u003c/b\u003e and \u003cb\u003eSecret Key\u003c/b\u003e for the \u003ci\u003edefault user\u003c/i\u003e of this account.\u003cbr\u003e\u003ch3\u003e4. Update the CloudStack Secret in the Kubernetes Cluster\u003c/h3\u003eCreate a temporary file `/tmp/cloud-config` with the following data:\u003cbr\u003e\u0026nbsp;\u0026nbsp;\u003ctt\u003e\u0026nbsp;api-url = \u0026lt;API_URL\u0026gt;  \u0026nbsp; \u0026nbsp;  # For example: \u0026lt;MS_URL\u0026gt;/client/api\u003cbr\u003e\u0026nbsp; api-key = \u0026lt;SERVICE_USER_API_KEY\u0026gt;\u003cbr\u003e\u0026nbsp; secret-key = \u0026lt;SERVICE_USER_SECRET_KEY\u0026gt;\u003cbr\u003e\u003c/tt\u003e\u003cdiv\u003e\u003ctt\u003e\u0026nbsp; project-id = \u0026lt;PROJECT_ID\u0026gt;\u003c/tt\u003e\u003c/div\u003e\u003cdiv\u003e\u003ctt\u003e\u003cbr\u003e\u003c/tt\u003e\u003c/div\u003eDelete the existing secret using kubectl and Kubernetes cluster config:\u003cbr\u003e\u003cdiv\u003e\u0026nbsp;\u0026nbsp;\u003ctt\u003e\u0026nbsp;./kubectl --kubeconfig kube.conf -n kube-system delete secret cloudstack-secret\u003c/tt\u003e\u003c/div\u003e\u003cdiv\u003e\u003ctt\u003e\u003cbr\u003e\u003c/tt\u003e\u003c/div\u003eCreate a new secret using kubectl and Kubernetes cluster config:\u003cbr\u003e\u003cdiv\u003e\u0026nbsp; \u0026nbsp; ./kubectl --kubeconfig kube.conf -n kube-system create secret generic cloudstack-secret --from-file=/tmp/cloud-config\u003c/div\u003e\u003cdiv\u003e\u003cbr\u003e\u003c/div\u003eRemove the temporary file:\u003cbr\u003e\u0026nbsp; \u0026nbsp; rm /tmp/cloud-config\u003ch3\u003e5. Regenerate API and Secret Keys\u003c/h3\u003eRegenerate the API and secret keys for the \u003cb\u003eoriginal user account\u003c/b\u003e that was used to create the Kubernetes cluster.\u003cbr\u003e"
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          "value": "When an Apache CloudStack user-account creates a CKS-based Kubernetes cluster in a project, the API key and the secret key of the \u0027kubeadmin\u0027 user of the caller account are used to create the secret config in the CKS-based Kubernetes cluster. A member of the project who can access the CKS-based Kubernetes cluster, can also access the API key and secret key of the \u0027kubeadmin\u0027 user of the CKS cluster\u0027s creator\u0027s account. An attacker who\u0027s a member of the project can exploit this to impersonate and perform privileged actions that can result in complete compromise of the confidentiality, integrity, and availability of resources owned by the creator\u0027s account.\n\nCKS users are recommended to upgrade to version 4.19.3.0 or 4.20.1.0, which fixes this issue.Updating Existing Kubernetes Clusters in ProjectsA service account should be created for each project to provide limited access specifically for Kubernetes cluster providers and autoscaling. Follow the steps below to create a new service account, update the secret inside the cluster, and regenerate existing API and service keys:1. Create a New Service AccountCreate a new account using the role \"Project Kubernetes Service Role\" with the following details:\n\nAccount Name\nkubeadmin-\u003cFIRST_EIGHT_CHARACTERS_OF_PROJECT_ID\u003e\nFirst Name\nKubernetes\nLast Name\nService User\nAccount Type\n0 (Normal User)\nRole ID\n\u003cID_OF_SERVICE_ROLE\u003e\n\n\n\n2. Add the Service Account to the ProjectAdd this account to the project where the Kubernetes cluster(s) are hosted.\n3. Generate API and Secret KeysGenerate API Key and Secret Key for the default user of this account.\n4. Update the CloudStack Secret in the Kubernetes ClusterCreate a temporary file `/tmp/cloud-config` with the following data:\n\u00a0\u00a0\u00a0api-url = \u003cAPI_URL\u003e  \u00a0 \u00a0  # For example: \u003cMS_URL\u003e/client/api\n\u00a0 api-key = \u003cSERVICE_USER_API_KEY\u003e\n\u00a0 secret-key = \u003cSERVICE_USER_SECRET_KEY\u003e\n\u00a0 project-id = \u003cPROJECT_ID\u003e\n\n\n\n\nDelete the existing secret using kubectl and Kubernetes cluster config:\n\u00a0\u00a0\u00a0./kubectl --kubeconfig kube.conf -n kube-system delete secret cloudstack-secret\n\n\n\n\nCreate a new secret using kubectl and Kubernetes cluster config:\n\u00a0 \u00a0 ./kubectl --kubeconfig kube.conf -n kube-system create secret generic cloudstack-secret --from-file=/tmp/cloud-config\n\n\n\n\nRemove the temporary file:\n\u00a0 \u00a0 rm /tmp/cloud-config5. Regenerate API and Secret KeysRegenerate the API and secret keys for the original user account that was used to create the Kubernetes cluster."
        }
      ],
      "metrics": [
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      "problemTypes": [
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          "descriptions": [
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              "cweId": "CWE-200",
              "description": "CWE-200 Exposure of Sensitive Information to an Unauthorized Actor",
              "lang": "en",
              "type": "CWE"
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      "providerMetadata": {
        "dateUpdated": "2025-06-10T23:08:48.602Z",
        "orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
        "shortName": "apache"
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      "references": [
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          "tags": [
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          "url": "https://cloudstack.apache.org/blog/cve-advisories-4.19.3.0-4.20.1.0/"
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          "url": "https://www.shapeblue.com/shapeblue-security-advisory-apache-cloudstack-security-releases-4-19-3-0-and-4-20-1-0/"
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        {
          "tags": [
            "mailing-list"
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          "url": "https://lists.apache.org/thread/y3qnwn59t8qggtdohv7k7vw39bgb3d60"
        }
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      "source": {
        "discovery": "UNKNOWN"
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      "title": "Apache CloudStack: CKS cluster in project exposes user API keys",
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    "assignerShortName": "apache",
    "cveId": "CVE-2025-26521",
    "datePublished": "2025-06-10T23:08:48.602Z",
    "dateReserved": "2025-02-12T09:12:55.769Z",
    "dateUpdated": "2025-06-14T03:56:16.937Z",
    "state": "PUBLISHED"
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