CVE-2026-66781

high Red Hat
CVSS v3 Base Score
6.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Attack Characteristics
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Confidentiality
High
Integrity
None
Availability
None
Published: August 18, 2026 (19 days ago)
Last Modified: August 18, 2026
Vendor: Red Hat
Source: REDHAT

Description

A flaw was found in the Submariner operator. The Submariner Custom Resource (CR), used for configuring network connectivity, stores the IPsec pre-shared key (PSK) in an unencrypted format. This key, which is critical for securing communication between Kubernetes clusters, can be accessed by unauthorized parties. Such access enables an attacker to passively decrypt network traffic flowing between any two clusters in the mesh, resulting in sensitive information disclosure.

CWE

CWE-312

Affected Products

Red Hat Advanced Cluster Management for Kubernetes 2

References

🔗 bugzilla.redhat.com 🔗 www.cve.org 🔗 nvd.nist.gov