Apple Container up to 1.4.x Credential Plugin admin.conf os command injection

Summaryinfo

A vulnerability, which was classified as critical, has been found in Apple Container up to 1.4.x. Impacted is an unknown function of the file /etc/kubernetes/admin.conf of the component Credential Plugin. The manipulation leads to os command injection. This vulnerability is referenced as CVE-2026-113951. The attack can only be performed from a local environment. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Apple Container up to 1.4.x. This issue affects an unknown functionality of the file /etc/kubernetes/admin.conf of the component Credential Plugin. The manipulation with an unknown input leads to a os command injection vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

If an attacker can write to the filesystem of a container k8s cluster container, they can plant an exec credential plugin in /etc/kubernetes/admin.conf. kubectl will run that plugin as the macOS host user the next time someone pulls the cluster's kubeconfig onto the host with container k8s write-config or create and then runs kubectl against it — turning filesystem access inside an untrusted Linux container into arbitrary command execution on the host. This vulnerability is addressed in Container version 1.5.0.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-113951 since 10/20/2026. The exploitation is known to be easy. Attacking locally is a requirement. The exploitation requires an enhanced level of successful authentication. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 10/23/2026). The attack technique deployed by this issue is T1202 according to MITRE ATT&CK.

Upgrading to version 1.5.0 eliminates this vulnerability.

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Productinfo

Type

• Virtualization Software

Vendor

• Apple

Name

• Container

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4

License

• commercial

Website

• Vendor: https://www.apple.com/
• Product: https://github.com/apple/container/

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