Vulnerability in Red Hat Advanced Cluster Management For Kubernetes 2

CVE-2026-66782

A flaw was found in the Submariner operator. This vulnerability allows for the exposure of a long-lived broker service account (SA) bearer token within the Submariner Custom Resource (CR) specification. An attacker with access to the cluster's etcd database or through `kubectl get` commands could obtain this token. The possession of this token grants full control over the mesh network, enabling unauthorized management of network resources such as endpoints and secrets.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-66782?
CVE-2026-66782 is a high-severity vulnerability in Red Hat Advanced Cluster Management For Kubernetes 2, classified under Cleartext Storage of Sensitive Information. CVSS score: 7.8/10. Published 2026-08-18.
How severe is CVE-2026-66782?
High severity. CVSS v3 base score is 7.8 out of 10.