CVE-2026-73137 Information disclosure in Red Hat Advanced Cluster Management for Kubernetes 2.11
A tenant with HelmRelease create permissions can exfiltrate sensitive credentials from arbitrary namespaces by manipulating the secretRef.Namespace field.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-73137?
CVE-2026-73137 is a high-severity vulnerability in Red Hat Advanced Cluster Management for Kubernetes 2.11, published on 20 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A flaw was found in the multicloud-operators-subscription component of Red Hat Advanced Cluster Management (RHACM). A tenant with HelmRelease create permissions can exploit this vulnerability by manipulating the `secretRef.Namespace` field. This allows the `GetSecret()` function in the HelmRelease controller to fetch sensitive credentials from any namespace, which are then sent to an attacker-controlled Helm repository. This can lead to the exfiltration of credentials from arbitrary namespace Secrets, resulting in information disclosure.
Weakness: CWE-200
Which versions are affected by CVE-2026-73137?
How do I fix CVE-2026-73137?
No fix has been published for CVE-2026-73137 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-73137 being exploited?
There is no known exploitation of CVE-2026-73137 in the wild and no public exploit code.
Sources
Also known as GHSA-rf6j-x765-j4p2.