Red HatCVE-2026-66783
Red Hat Advanced Cluster Management for Kubernetes 2: code execution
Medium4.4CVE-2026-66783 · Published Aug 18, 2026 · updated Sep 3, 2026
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 versions
| Package | Affected | Fixed in |
|---|---|---|
| Red Hat Advanced Cluster Management for Kubernetes 2 Product | all versions | No fix yet |
| all versions | No fix yet |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-1357
More Red Hat advisories
All Red Hat| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Aug 18 | A flaw was found in the legacy client-initiated account-linking endpoint of... | High7.3 | No fix yet |
| Aug 18 | Red Hat Advanced Cluster Management for Kubernetes 2: secrets in logs | Medium6.5 | No fix yet |
| Aug 18 | Red Hat Multicluster Engine for Kubernetes: information disclosure | High8.7 | No fix yet |
| Aug 18 | Red Hat Advanced Cluster Management for Kubernetes 2: information disclosure | Medium5.4 | No fix yet |
| Aug 18 | Red Hat Advanced Cluster Management: improper privilege management | Medium5.8 | No fix yet |
| Aug 18 | reset-credentials flow of the keycloak-services: weak password recovery | Critical9.1 | No fix yet |