Information Disclosure Vulnerability in Multicloud Operators Subscription by Red Hat
CVE-2026-66878

7.7HIGH

Key Information:

Vendor

Red Hat
Status
Red Hat Advanced Cluster Management For Kubernetes 2
Vendor
CVE Published:
12 August 2026

What is CVE-2026-66878?

A flaw in the Red Hat Multicloud Operators Subscription allows a namespace administrator with privileges to exploit the system by manipulating the Channel.Spec.SecretRef.Namespace field. This can result in unauthorized copying of sensitive secret data from other namespaces into the user's own namespace, posing a risk of information disclosure.

References

https://access.redhat.com/security/cve/CVE-2026-66878
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2514226
issue-trackingx_refsource_REDHAT

CVSS V3.1

Score:
7.7
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.