{"id":"CVE-2026-113709","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-113709","generatedAt":"2026-10-28T02:57:44.838Z","title":"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.","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.","published":"2026-10-20T19:17:33.000Z","lastModified":"2026-10-21T16:17:25.000Z","status":"Undergoing Analysis","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":9.9,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"},"cwe":["CWE-829"],"affected":[],"epss":{"score":0.0053,"percentile":0.44578,"date":"2026-10-26","history":[{"date":"2026-10-21","score":0.00424,"percentile":0.35542}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.53%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-20T19:17:33.000Z","detail":{"score":"9.9","severity":"CRITICAL","publishedAt":"2026-10-20T19:17:33.457Z"},"summary":"New CVE, critical severity (CVSS 9.9)."}],"references":[{"url":"https://argo-cd.readthedocs.io/en/stable/user-guide/kustomize/#kustomizing-helm-charts","source":"security-advisories@github.com"},{"url":"https://github.com/argoproj/argo-cd/commit/b6d5c23bce2f8a46c52975ba438a3b93d242d96c","source":"security-advisories@github.com"},{"url":"https://github.com/argoproj/argo-cd/pull/6059","source":"security-advisories@github.com"},{"url":"https://github.com/argoproj/argo-cd/releases/tag/v3.3.15","source":"security-advisories@github.com"},{"url":"https://github.com/argoproj/argo-cd/releases/tag/v3.4.10","source":"security-advisories@github.com"},{"url":"https://github.com/argoproj/argo-cd/releases/tag/v3.5.4","source":"security-advisories@github.com"},{"url":"https://github.com/argoproj/argo-cd/releases/tag/v3.6.0-rc2","source":"security-advisories@github.com"},{"url":"https://github.com/argoproj/argo-cd/security/advisories/GHSA-fw5c-w8rc-j7fx","source":"security-advisories@github.com"},{"url":"https://github.com/argoproj/argo-cd/security/advisories/GHSA-j6cw-g6p4-7hch","source":"security-advisories@github.com"},{"url":"https://github.com/kubernetes-sigs/kustomize/pull/3784","source":"security-advisories@github.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-113709","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}