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.
History

Thu, 27 Aug 2026 04:00:00 +0000

Type Values Removed Values Added
CPEs cpe:/a:redhat:acm:2.11::el9
cpe:/a:redhat:acm:2.14::el9
cpe:/a:redhat:acm:2.16::el9
References

Wed, 26 Aug 2026 22:00:00 +0000

Type Values Removed Values Added
CPEs cpe:/a:redhat:acm:2.13::el9
cpe:/a:redhat:acm:2.15::el9
cpe:/a:redhat:acm:2.17::el9
References

Fri, 21 Aug 2026 21:15:00 +0000

Type Values Removed Values Added
First Time appeared Redhat advanced Cluster Management For Kubernetes
Vendors & Products Redhat advanced Cluster Management For Kubernetes

Wed, 19 Aug 2026 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Important


Tue, 18 Aug 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 18 Aug 2026 17:15:00 +0000

Type Values Removed Values Added
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.
Title Submariner-operator: submariner-operator: ipsec psk stored cleartext in submariner cr spec
First Time appeared Redhat
Redhat acm
Weaknesses CWE-312
CPEs cpe:/a:redhat:acm:2
Vendors & Products Redhat
Redhat acm
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-08-27T02:15:42.397Z

Reserved: 2026-07-27T17:51:24.885Z

Link: CVE-2026-66781

cve-icon Vulnrichment

Updated: 2026-08-18T19:21:39.912Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-08-18T17:17:00.580

Modified: 2026-08-27T04:16:45.617

Link: CVE-2026-66781

cve-icon Redhat

Severity : Important

Publid Date: 2026-08-18T16:35:00Z

Links: CVE-2026-66781 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-08-21T21:00:03Z