CVE-2026-66878

HIGH CVSS 3.1: 7.7 EPSS 0.21%
Updated Aug 14, 2026
Red Hat
Parameter Value
CVSS 7.7 (HIGH)
Type CWE-639 (Authorization Bypass)
Vendor Red Hat
Public PoC No

A flaw was found in multicloud-operators-subscription. A privileged user, specifically a namespace administrator capable of creating Channel and Subscription resources, can exploit this vulnerability. By manipulating the Channel.Spec.SecretRef.Namespace field, the user can cause the system to copy sensitive Secret contents from other namespaces into their own, leading to information disclosure.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
None
No data modification
Availability
None
No disruption

CVSS Vector v3.1

Weakness Type (CWE)

Vulnerable Products

red hat:red hat advanced cluster management for kubernetes 2