Argo Project Argo CD up to 3.3.14/3.4.9/3.5.3/3.6.0-rc1 Kustomize manifestsWithFiles os command injection

Summaryinfo

A vulnerability categorized as critical has been discovered in Argo Project Argo CD up to 3.3.14/3.4.9/3.5.3/3.6.0-rc1. Affected by this issue is some unknown functionality of the file /api/v1/applications/manifestsWithFiles of the component Kustomize. Executing a manipulation can lead to os command injection. This vulnerability is tracked as CVE-2026-113708. The attack can be launched remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Argo Project Argo CD up to 3.3.14/3.4.9/3.5.3/3.6.0-rc1. It has been declared as critical. This vulnerability affects an unknown functionality of the file /api/v1/applications/manifestsWithFiles of the component Kustomize. The manipulation with an unknown input leads to a os command injection vulnerability. The CWE definition for the vulnerability is CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is available at github.com. This vulnerability was named CVE-2026-113708 since 10/20/2026. The exploitation appears to be easy. The attack can be initiated remotely. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1202 by the MITRE ATT&CK project.

Upgrading to version 3.3.15, 3.4.10, 3.5.4 or 3.6.0-rc2 eliminates this vulnerability.

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Productinfo

Type

• Project Management Software

Vendor

• Argo Project

Name

• Argo CD

Version

• 3.3.0
• 3.3.1
• 3.3.2
• 3.3.3
• 3.3.4
• 3.3.5
• 3.3.6
• 3.3.7
• 3.3.8
• 3.3.9
• 3.3.10
• 3.3.11
• 3.3.12
• 3.3.13
• 3.3.14
• 3.4.0
• 3.4.1
• 3.4.2
• 3.4.3
• 3.4.4
• 3.4.5
• 3.4.6
• 3.4.7
• 3.4.8
• 3.4.9
• 3.5.0
• 3.5.1
• 3.5.2
• 3.5.3
• 3.6.0-rc1

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CPE 2.2info

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