CVE-2026-66783: Submariner-operator: release workflow consumes same-org composite action via mutable @devel branch ref
Red Hat · Red Hat Advanced Cluster Management for Kubernetes 2.16
Vendor fix available · Affected: Red Hat Advanced Cluster Management for Kubernetes 2.16 · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 30% of scored CVEs
DescriptionCVE.org
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 products6
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- Red Hat · Red Hat Advanced Cluster Management for Kubernetes 2.16Versions not stated
- Red Hat · Red Hat Advanced Cluster Management for Kubernetes 2.16Versions not stated
- Red Hat · Red Hat Advanced Cluster Management for Kubernetes 2.17Versions not stated
- Red Hat · Red Hat Advanced Cluster Management for Kubernetes 2.17Versions not stated
- Red Hat · Red Hat Advanced Cluster Management for Kubernetes 2Versions not stated
- Red Hat · Red Hat Advanced Cluster Management for Kubernetes 2Versions not stated
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- Red Hat
- Published
- August 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-66783 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.