{"id":"CVE-2026-113709","state":"PUBLISHED","title":"Argo CD: A Kustomize Helm config home can run commands in the repo-server","description":"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.","publishedAt":"2026-10-20T18:08:36.565Z","updatedAt":"2026-10-21T15:52:55.778Z","severity":{"score":9.9,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["argoproj argo-cd"],"affected":[{"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"}]}],"references":["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/argoproj/argo-cd/pull/6059","https://github.com/kubernetes-sigs/kustomize/pull/3784","https://github.com/argoproj/argo-cd/commit/b6d5c23bce2f8a46c52975ba438a3b93d242d96c","https://argo-cd.readthedocs.io/en/stable/user-guide/kustomize/#kustomizing-helm-charts","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"],"weaknesses":["CWE-829"],"ingestedAt":"2026-10-29T20:10:43.281Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/113xxx/CVE-2026-113709.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-113709","state":"PUBLISHED","datePublished":"2026-10-20T18:08:36.565Z","dateUpdated":"2026-10-21T15:52:55.778Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-10-20T16:03:14.862Z"},"containers":{"cna":{"title":"Argo CD: A Kustomize Helm config home can run commands in the repo-server","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":[{"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"}]}],"references":[{"url":"https://github.com/argoproj/argo-cd/security/advisories/GHSA-fw5c-w8rc-j7fx","name":"https://github.com/argoproj/argo-cd/security/advisories/GHSA-fw5c-w8rc-j7fx","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/argoproj/argo-cd/security/advisories/GHSA-j6cw-g6p4-7hch","name":"https://github.com/argoproj/argo-cd/security/advisories/GHSA-j6cw-g6p4-7hch","tags":["x_refsource_MISC"]},{"url":"https://github.com/argoproj/argo-cd/pull/6059","name":"https://github.com/argoproj/argo-cd/pull/6059","tags":["x_refsource_MISC"]},{"url":"https://github.com/kubernetes-sigs/kustomize/pull/3784","name":"https://github.com/kubernetes-sigs/kustomize/pull/3784","tags":["x_refsource_MISC"]},{"url":"https://github.com/argoproj/argo-cd/commit/b6d5c23bce2f8a46c52975ba438a3b93d242d96c","name":"https://github.com/argoproj/argo-cd/commit/b6d5c23bce2f8a46c52975ba438a3b93d242d96c","tags":["x_refsource_MISC"]},{"url":"https://argo-cd.readthedocs.io/en/stable/user-guide/kustomize/#kustomizing-helm-charts","name":"https://argo-cd.readthedocs.io/en/stable/user-guide/kustomize/#kustomizing-helm-charts","tags":["x_refsource_MISC"]},{"url":"https://github.com/argoproj/argo-cd/releases/tag/v3.3.15","name":"https://github.com/argoproj/argo-cd/releases/tag/v3.3.15","tags":["x_refsource_MISC"]},{"url":"https://github.com/argoproj/argo-cd/releases/tag/v3.4.10","name":"https://github.com/argoproj/argo-cd/releases/tag/v3.4.10","tags":["x_refsource_MISC"]},{"url":"https://github.com/argoproj/argo-cd/releases/tag/v3.5.4","name":"https://github.com/argoproj/argo-cd/releases/tag/v3.5.4","tags":["x_refsource_MISC"]},{"url":"https://github.com/argoproj/argo-cd/releases/tag/v3.6.0-rc2","name":"https://github.com/argoproj/argo-cd/releases/tag/v3.6.0-rc2","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.9,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-829","lang":"en","description":"CWE-829: Inclusion of Functionality from Untrusted Control Sphere","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-10-20T18:08:36.565Z"},"source":{"advisory":"GHSA-fw5c-w8rc-j7fx","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-21T14:39:50.323448Z","id":"CVE-2026-113709","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-21T15:52:55.778Z"}}]}}}