CVE-2026-113708 Argo CD: A Kustomize remote ref can run commands in the repo-server
- Exploited in the wild
- Not known
- Fix
- Available
What is CVE-2026-113708?
CVE-2026-113708 is a critical vulnerability in argoproj argo-cd, published on 20 Oct 2026.
Official description
Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. From 2.7.0 until 3.3.15, 3.4.10, 3.5.4, and 3.6.0-rc2, Kustomize passes ref or version query values from remote resource, base, or component URLs to git fetch without an end-of-options separator. A leading-hyphen value can be parsed as --upload-pack and execute a command inside argocd-repo-server when the remote uses a local transport such as file://. Git does not run the supplied command for an https:// remote. The local transport does not leave the pod, so blocking repo-server egress does not prevent the execution. The command runs as the repo-server user, can read repository credentials and other process-accessible data, and can return output through manifest-generation errors. An attacker can commit a Kustomization to a Git repository that an Application builds or upload 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. Kustomize 5.0.0 introduced acceptance of file://, whereas 4.5.7 rejects that transport; replacing the affected Kustomize with a newer version alone does not correct the missing option separator. This issue is fixed in versions 3.3.15, 3.4.10, 3.5.4, and 3.6.0-rc2.
Weakness: CWE-88
Which versions are affected by CVE-2026-113708?
1 open source package ship an affected version, including argo-cd.
| Package | Affected | Fixed in |
|---|---|---|
argo-cd Bitnami | From 2.7.0 | 3.3.15, 3.4.10, 3.5.4 |
How do I fix CVE-2026-113708?
Upgrade argo-cd to a fixed version for your release line: 3.3.15, 3.4.10 or 3.5.4.
Is CVE-2026-113708 being exploited?
There is no known exploitation of CVE-2026-113708 in the wild and no public exploit code.
Sources
Also known as BIT-argo-cd-2026-113708.