CVE-2026-113951
High
Description
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.
SeverityHigh
CVSS7.8
Exploit probability—
Product
Container
PublishedOct 23, 2026
First seenOct 23, 2026
Weakness typeCWE-276CWE-276
How to fix
Update
- Apple Container1.5.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Apple Container | v < 1.5.0 | 1.5.0 |
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