Medium severity · published Aug 12, 2026
CVE-2026-64927
Multicloud-operators-channel: multicloud-operators-channel: cross-namespace secret and configmap mutation via spec.secretref.namespace confused deputy
6.4
CVSS
0.3%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 26% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RH
Red Hat Advanced Cluster Management for Kubernetes 2.11 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Advanced Cluster Management for Kubernetes 2.13 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Advanced Cluster Management for Kubernetes 2.14 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Advanced Cluster Management for Kubernetes 2.15 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Advanced Cluster Management for Kubernetes 2.16 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Advanced Cluster Management for Kubernetes 2.17 · Red Hat
All versions, or not specified · source: vendor
Affected product
RH
Red Hat Advanced Cluster Management for Kubernetes 2.11
Red Hat
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-64927
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-64927
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:60386
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:60387
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:60388
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:60389
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:60390
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:60391
More from Red Hat Advanced Cluster Management for Kubernetes 2.11
9.9
CVE-2026-67567
Multicloud-operators-subscription: multicloud-operators-subscription: helmrelease chart applied with controller sa without gvk or namespace restriction
9.9
CVE-2026-70496
Search-v2-operator: search-v2-operator: operator clusterrole is cluster-admin equivalent via impersonate, rbac write, csr approve, and manifestwork
9.9
CVE-2026-66792
Multicloud-operators-subscription: multicloud-operators-subscription: isclusteradmin() trusts user-settable annotations on managed clusters
9.9
CVE-2026-72508
Multicloud-operators-subscription: multicloud-operators-subscription: hub and spoke serviceaccounts bound to wildcard rbac (*/*/*)
9.9
CVE-2026-72526
Multicloud-integrations: multicloud-integrations: pull-model propagation allows hub tenant to target arbitrary spoke cluster via unvalidated ocm-managed-cluster annotation