CVE-2023-40029

Summary

CVE-2023-40029 affects Argo CD, a Kubernetes continuous deployment tool. A recent update introduced the ability to manage cluster labels and annotations as secrets. However, this change also exposes the `kubectl.kubernetes.io/last-applied-configuration` annotation, which includes the full secret body. Sensitive information, such as bearer tokens, could be accessed through the Argo CD API if the user has `clusters, get` RBAC permissions. This vulnerability has been patched in versions 2.8.3, 2.7.14, and 2.6.15. Users unable to upgrade should update or deploy cluster secrets using the `server-side-apply` flag instead. Existing annotations will need manual removal.

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