{"id":"CVE-2026-113709","title":"Argo CD: A Kustomize Helm config home can run commands in the repo-server","summary":"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 conf…","severity":"critical","cvss":9.9,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","cvssSource":"cna","cwe":["CWE-829"],"vendor":"argoproj","product":"argo-cd","affected":["argo-cd >= 2.1.0, < 3.3.15","argo-cd >= 3.4.0-rc1, < 3.4.10","argo-cd >= 3.5.0-rc1, < 3.5.4","argo-cd >= 3.6.0-rc1, < 3.6.0-rc2"],"published":"2026-10-20","updated":"2026-10-20","sourceUpdated":"2026-10-20T18:08:36.565Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-113709","references":[{"url":"https://github.com/argoproj/argo-cd/security/advisories/GHSA-fw5c-w8rc-j7fx","label":"https://github.com/argoproj/argo-cd/security/advisories/GHSA-fw5c-w8rc-j7fx"},{"url":"https://github.com/argoproj/argo-cd/security/advisories/GHSA-j6cw-g6p4-7hch","label":"https://github.com/argoproj/argo-cd/security/advisories/GHSA-j6cw-g6p4-7hch"},{"url":"https://github.com/argoproj/argo-cd/pull/6059","label":"https://github.com/argoproj/argo-cd/pull/6059"},{"url":"https://github.com/kubernetes-sigs/kustomize/pull/3784","label":"https://github.com/kubernetes-sigs/kustomize/pull/3784"},{"url":"https://github.com/argoproj/argo-cd/commit/b6d5c23bce2f8a46c52975ba438a3b93d242d96c","label":"https://github.com/argoproj/argo-cd/commit/b6d5c23bce2f8a46c52975ba438a3b93d242d96c"},{"url":"https://argo-cd.readthedocs.io/en/stable/user-guide/kustomize/#kustomizing-helm-charts","label":"https://argo-cd.readthedocs.io/en/stable/user-guide/kustomize/#kustomizing-helm-charts"},{"url":"https://github.com/argoproj/argo-cd/releases/tag/v3.3.15","label":"https://github.com/argoproj/argo-cd/releases/tag/v3.3.15"},{"url":"https://github.com/argoproj/argo-cd/releases/tag/v3.4.10","label":"https://github.com/argoproj/argo-cd/releases/tag/v3.4.10"},{"url":"https://github.com/argoproj/argo-cd/releases/tag/v3.5.4","label":"https://github.com/argoproj/argo-cd/releases/tag/v3.5.4"},{"url":"https://github.com/argoproj/argo-cd/releases/tag/v3.6.0-rc2","label":"https://github.com/argoproj/argo-cd/releases/tag/v3.6.0-rc2"}],"tags":["cve.org"],"ingestedAt":"2026-10-20T19:16:14.562Z","slug":"CVE-2026-113709","body":"## Overview\n\nArgo 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.\n\n## Affected\n\n- `argo-cd >= 2.1.0, < 3.3.15`\n- `argo-cd >= 3.4.0-rc1, < 3.4.10`\n- `argo-cd >= 3.5.0-rc1, < 3.5.4`\n- `argo-cd >= 3.6.0-rc1, < 3.6.0-rc2`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":54,"depthScoreParts":{"impact":54.5,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}