Auth bypass in Red Hat Advanced Cluster Management For Kubernetes 2
CVE-2026-64927
A flaw was found in the multicloud-operators-channel component. This vulnerability allows a user with specific permissions to manipulate how the system handles sensitive information, known as Secrets, across different parts of the system (namespaces). By exploiting this, an attacker can modify these Secrets in unauthorized areas. This could lead to unauthorized access to information or elevated privileges within the system.
Vulnerability class: IDOR (Insecure Direct Object Reference)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (23.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 23rd percentile — 23.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001
Affected products
Weakness classification (CWE)
References
- access.redhat.com/security/cve/CVE-2026-64927 (vdb-entry)
- bugzilla.redhat.com/show_bug.cgi (issue-tracking)
- access.redhat.com/errata/RHSA-2026:60386 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:60389 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:60390 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:60387 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:60388 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:60391 (vendor-advisory)
Frequently asked questions
- What is CVE-2026-64927?
- CVE-2026-64927 is a medium-severity vulnerability in Red Hat Advanced Cluster Management For Kubernetes 2, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 6.4/10. Published 2026-08-12.
- How severe is CVE-2026-64927?
- Medium severity. CVSS v3 base score is 6.4 out of 10.