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CVE-2026-66781— Submariner-operator: pprof debug endpoint enabled by default on 0.0.0.0:8082 without authentication

Quick assessment

Affected
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.11
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Submariner Operator是Submariner团队开源的一个提供跨集群网络连接能力的网络产品。 Submariner Operator存在加密问题漏洞，该漏洞源于Submariner自定义资源以未加密格式存储IPsec预共享密钥，可能被未授权方访问，导致敏感信息泄露。

CVSS 5.4 · Medium EPSS 0.39% · P30

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage

Affected Version Matrix 9

VendorProduct Version RangeStatus
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2 any affected
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.11 1787689013< * unaffected
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.13 1787365971< * unaffected
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.14 1787362756< * unaffected
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.15 1787362733< * unaffected
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.16 1787362694< * unaffected
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.17 1787362658< * unaffected
1788105072< * unaffected
1788073481< * unaffected
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I. Basic Information for CVE-2026-66781

Vulnerability Information
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Vulnerability Title
Submariner-operator: pprof debug endpoint enabled by default on 0.0.0.0:8082 without authentication
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
暴露危险的方法或函数
Source: CVE Program / CVE List V5
Vulnerability Title
Submariner Operator 加密问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Submariner Operator是Submariner团队开源的一个提供跨集群网络连接能力的网络产品。 Submariner Operator存在加密问题漏洞，该漏洞源于Submariner自定义资源以未加密格式存储IPsec预共享密钥，可能被未授权方访问，导致敏感信息泄露。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.11 1787689013 ~ * cpe:/a:redhat:acm:2.11::el9
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.13 1787365971 ~ * cpe:/a:redhat:acm:2.13::el9
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.14 1787362756 ~ * cpe:/a:redhat:acm:2.14::el9
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.15 1787362733 ~ * cpe:/a:redhat:acm:2.15::el9
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.16 1787362694 ~ * cpe:/a:redhat:acm:2.16::el9
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.17 1787362658 ~ * cpe:/a:redhat:acm:2.17::el9
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.17 1788105072 ~ * cpe:/a:redhat:acm:2.17::el9
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.17 1788073481 ~ * cpe:/a:redhat:acm:2.17::el9
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2 - cpe:/a:redhat:acm:2

II. Public POCs for CVE-2026-66781

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III. Intelligence Information for CVE-2026-66781

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Vendor Advisories for CVE-2026-66781 (9)

Same Patch Batch · Red Hat · 2026-08-18 · 14 CVEs total

CVE-2026-12564 9.6 CRITICAL Automation-controller: automation-controller: kubernetes service account token exfiltratio
CVE-2026-18963 9.1 CRITICAL Keycloak-services: keycloak-services: unauthenticated account takeover via reset-credentia
CVE-2026-66793 8.8 HIGH Governance-policy-addon-controller: governance-policy-addon-controller: arbitrary containe
CVE-2026-75924 8.7 HIGH Managed-serviceaccount: managed-serviceaccount: hub addon-manager clusterrole grants clust
CVE-2026-71365 7.7 HIGH Awx: webhook status callback ssrf leaks the git pat
CVE-2026-15571 7.3 HIGH Keycloak-services: keycloak-services: predictable account-linking hash enables account tak
CVE-2026-66780 6.5 MEDIUM Submariner-operator: broker serviceaccount secret (token + ca) logged in full at trace ver
CVE-2026-75032 6.3 MEDIUM Bluez: bluez: out-of-bounds read in avrcp parse_media_element and parse_media_folder
CVE-2026-66782 5.8 MEDIUM Submariner-operator: operator clusterrole grants cluster-wide create/update on all configm
CVE-2026-75485 5.5 MEDIUM Must-gather: /tmp/kubeconfig retention
CVE-2026-73834 5.5 MEDIUM Must-gather: must-gather: embedded secret data in acm wrapper crs collected without redact
CVE-2026-19608 5.3 MEDIUM Keycloak-services: keycloak-services: name-only group claims let same-name groups satisfy
CVE-2026-66783 4.4 MEDIUM Submariner-operator: release workflow consumes same-org composite action via mutable @deve

IV. Related Vulnerabilities

Same product: Red Hat Advanced Cluster Management for Kubernetes 2.11
Same vendor: Red Hat
Same weakness: CWE-749

V. Comments for CVE-2026-66781

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