CVE-2026-64927 PUBLISHED

Multicloud-operators-channel: multicloud-operators-channel: cross-namespace secret and configmap mutation via spec.secretref.namespace confused deputy

Assigner: redhat
Reserved: 11.08.2026 Published: 12.08.2026 Updated: 12.08.2026

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.

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
CVSS Score: 6.4

Product Status

Vendor Red Hat
Product Red Hat Advanced Cluster Management for Kubernetes 2
Versions Default: affected

Workarounds

Restrict the creation of Channel resources to trusted administrators within Red Hat Advanced Cluster Management. This limits the attack surface by preventing unauthorized tenants from exploiting the confused deputy vulnerability in the multicloud-operators-channel component.

References

Problem Types

  • Authorization Bypass Through User-Controlled Key CWE