Information disclosure in Red Hat Advanced Cluster Management For Kubernetes 2
CVE-2026-73137
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.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.005 (42.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 42.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.005 · change: +0.001
Affected products
Weakness classification (CWE)
References
- access.redhat.com/security/cve/CVE-2026-73137 (vdb-entry)
- RHBZ#2514223 (issue-tracking)
- RHSA-2026:60386 (vendor-advisory)
- RHSA-2026:60389 (vendor-advisory)
- RHSA-2026:60390 (vendor-advisory)
- RHSA-2026:60387 (vendor-advisory)
- RHSA-2026:60388 (vendor-advisory)
- RHSA-2026:60391 (vendor-advisory)
Frequently asked questions
- What is CVE-2026-73137?
- CVE-2026-73137 is a high-severity vulnerability in Red Hat Advanced Cluster Management For Kubernetes 2, classified under Information Disclosure. CVSS score: 7.7/10. Published 2026-08-20.
- How severe is CVE-2026-73137?
- High severity. CVSS v3 base score is 7.7 out of 10.