Track vulnerabilities like this one.
Sign up free to get alerted when software you use is affected.
5.8
CVE-2026-66782: Red Hat Advanced Cluster Management can expose Submariner token
CVE-2026-66782 · published 2 months ago
Summary
The Submariner component in Red Hat Advanced Cluster Management stores a service account token in its configuration, which can be read by anyone who can view the cluster’s data store or run basic commands. If the token is obtained, an attacker could take control of the mesh network and change network settings or secrets. Limit access to the cluster’s data store and review the Submariner configuration to remove or rotate the token.
What to do
The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.
Affected software
| Vendor | Product | Affected versions |
|---|---|---|
| red hat | red hat advanced cluster management for kubernetes 2 | All versions |
| red hat | red hat advanced cluster management for kubernetes 2.16 | All versions |
| red hat | red hat advanced cluster management for kubernetes 2.17 | All versions |
Original advisory text
Submariner-operator: operator clusterrole grants cluster-wide create/update on all configmaps
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.
Internet-facing
14 days
Internal
At next upgrade
- Not known to be exploited
- Needs hands-on effort to exploit
- Gives an attacker full control
Severity
5.8
Medium
Type
CWE-312Cleartext Storage of Sensitive Information
CWE-269Improper Privilege Management
Timeline
Published18 Aug 2026
Updated4 Nov 2026
First seen18 Aug 2026
Track software like this
Free during beta