CVE-2026-113709

{
  "id": "CVE-2026-113709",
  "sourceIdentifier": "[email protected]",
  "published": "2026-10-20T19:17:33.457",
  "lastModified": "2026-10-21T16:17:24.917",
  "vulnStatus": "Undergoing Analysis",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. From 2.1.0 until 3.3.15, 3.4.10, 3.5.4, and 3.6.0-rc2, when an operator has enabled --enable-helm for kustomize build, helmGlobals.configHome can point Helm's config and data directories at a repository-controlled location. Helm automatically loads a downloader plugin from `<configHome>/.data/plugins` without a separate plugin-install step and executes its program inside argocd-repo-server when a helmCharts repository URL uses the plugin's protocol. The command runs as the repo-server user and can read repository credentials and other process-accessible data. An attacker can commit the Kustomization and plugin to a Git repository that an Application builds or upload the files through POST /api/v1/applications/manifestsWithFiles, also exposed by argocd app diff --local --server-side-generate. The upload path requires only Application get permission on an existing Application, without Application update or sync permission or repository write access. Both delivery paths require prior operator enablement of --enable-helm; deployments that do not enable it are not affected. Kustomize 4.1.0 first passed helmGlobals.configHome through to Helm. This issue is fixed in versions 3.3.15, 3.4.10, 3.5.4, and 3.6.0-rc2."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "argoproj",
          "product": "argo-cd",
          "versions": [
            {
              "version": ">= 2.1.0, < 3.3.15",
              "status": "affected"
            },
            {
              "version": ">= 3.4.0-rc1, < 3.4.10",
              "status": "affected"
            },
            {
              "version": ">= 3.5.0-rc1, < 3.5.4",
              "status": "affected"
            },
            {
              "version": ">= 3.6.0-rc1, < 3.6.0-rc2",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
          "baseScore": 9.9,
          "baseSeverity": "CRITICAL",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "CHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 3.1,
        "impactScore": 6.0
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-10-21T14:39:50.323448Z",
          "id": "CVE-2026-113709",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-829"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://argo-cd.readthedocs.io/en/stable/user-guide/kustomize/#kustomizing-helm-charts",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/argoproj/argo-cd/commit/b6d5c23bce2f8a46c52975ba438a3b93d242d96c",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/argoproj/argo-cd/pull/6059",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/argoproj/argo-cd/releases/tag/v3.3.15",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/argoproj/argo-cd/releases/tag/v3.4.10",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/argoproj/argo-cd/releases/tag/v3.5.4",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/argoproj/argo-cd/releases/tag/v3.6.0-rc2",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/argoproj/argo-cd/security/advisories/GHSA-fw5c-w8rc-j7fx",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/argoproj/argo-cd/security/advisories/GHSA-j6cw-g6p4-7hch",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/kubernetes-sigs/kustomize/pull/3784",
      "source": "[email protected]"
    }
  ]
}