CVE-2026-113709

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.

• CWE-829

• https://argo-cd.readthedocs.io/en/stable/user-guide/kustomize/#kustomizing-helm-charts
• https://github.com/argoproj/argo-cd/commit/b6d5c23bce2f8a46c52975ba438a3b93d242d96c
• https://github.com/argoproj/argo-cd/pull/6059
• https://github.com/argoproj/argo-cd/releases/tag/v3.3.15
• https://github.com/argoproj/argo-cd/releases/tag/v3.4.10
• https://github.com/argoproj/argo-cd/releases/tag/v3.5.4
• https://github.com/argoproj/argo-cd/releases/tag/v3.6.0-rc2
• https://github.com/argoproj/argo-cd/security/advisories/GHSA-fw5c-w8rc-j7fx
• https://github.com/argoproj/argo-cd/security/advisories/GHSA-j6cw-g6p4-7hch
• https://github.com/kubernetes-sigs/kustomize/pull/3784

Published

Oct 20, 2026

Last Modified

Oct 21, 2026

Status

Undergoing Analysis

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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