Description
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.
Published: 2026-08-18
Score: 7.8 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

Vendor Workaround

To mitigate this issue, ensure that access to Submariner Custom Resources (CRs) is strictly controlled. Implement Kubernetes Role-Based Access Control (RBAC) policies to limit read access to Submariner CRs only to authorized administrators and components that explicitly require it. This reduces the risk of unauthorized disclosure of the broker Service Account bearer token, which may be stored in cleartext within the CR's specification field. Review existing RBAC configurations to ensure least privilege is applied to resources containing sensitive information.

Tracking

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Advisories

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History

Tue, 18 Aug 2026 17:15:00 +0000

Type Values Removed Values Added
Description 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.
Title Submariner-operator: submariner-operator: broker api bearer token stored cleartext in cr spec
First Time appeared Redhat
Redhat acm
Weaknesses CWE-312
CPEs cpe:/a:redhat:acm:2
Vendors & Products Redhat
Redhat acm
References
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-08-18T19:53:15.244Z

Reserved: 2026-07-27T17:51:24.885Z

Link: CVE-2026-66782

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-18T17:17:00.710

Modified: 2026-08-18T17:17:00.710

Link: CVE-2026-66782

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-18T19:00:12Z

Weaknesses
  • CWE-312

    Cleartext Storage of Sensitive Information