Skip to content
OpenAdvisories
Medium · 4.4 CVE-2026-66783 EUVD-2026-61067GHSA-95w2-696m-24mq

Submariner-operator: release workflow consumes same-org composite action via mutable @devel branch ref

Published Aug 18, 2026 · Updated Oct 19, 2026 · Assigned by redhat

Description

A flaw was found in the `submariner-operator` component of Red Hat Advanced Cluster Management for Kubernetes. This vulnerability allows a cluster administrator, or any user with permissions to modify the Submariner Custom Resource (CR), to specify an unvalidated image path. This lack of validation enables an attacker to execute arbitrary code with elevated privileges across the entire cluster, including control-plane nodes, by deploying a malicious image.

Affected products

VendorProductAffectedFixed
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.16 — —
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.17 — —
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2 — —

References