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CVE-2026-66780— Submariner-operator: broker serviceaccount secret (token + ca) logged in full at trace verbosity

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存在权限许可和访问控制问题漏洞，该漏洞源于submariner-k8s-broker-cluster角色拥有过多权限，可能导致攻击者篡改网络配置并覆盖其他集群端点信息，从而重定向集群间隧道流量，导致跨整个集群网格的中间人攻击。

CVSS 6.5 · Medium EPSS 0.58% · P46

Affected Version Matrix 10

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 1789135606< * unaffected
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.13 1789131397< * unaffected
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.14 1789136328< * unaffected
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.15 1789136327< * unaffected
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.16 1789136320< * unaffected
1787854416< * unaffected
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.17 1788105072< * unaffected
1788073481< * unaffected
1788572527< * unaffected
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I. Basic Information for CVE-2026-66780

Vulnerability Information
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Vulnerability Title
Submariner-operator: broker serviceaccount secret (token + ca) logged in full at trace verbosity
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in the submariner-operator component. The `submariner-k8s-broker-cluster` Role, which is assigned to joined clusters, possesses excessive permissions. This allows a compromised cluster to alter network configurations, specifically by overwriting other clusters' endpoint information. Consequently, an attacker can redirect inter-cluster tunnel traffic, enabling a Man-in-the-Middle (MITM) attack across the entire cluster mesh.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过日志文件的信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Submariner Operator 权限许可和访问控制问题漏洞
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存在权限许可和访问控制问题漏洞，该漏洞源于submariner-k8s-broker-cluster角色拥有过多权限，可能导致攻击者篡改网络配置并覆盖其他集群端点信息，从而重定向集群间隧道流量，导致跨整个集群网格的中间人攻击。
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 1789135606 ~ * cpe:/a:redhat:acm:2.11::el9
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.13 1789131397 ~ * cpe:/a:redhat:acm:2.13::el9
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.14 1789136328 ~ * cpe:/a:redhat:acm:2.14::el9
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.15 1789136327 ~ * cpe:/a:redhat:acm:2.15::el9
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.16 1789136320 ~ * cpe:/a:redhat:acm:2.16::el9
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.16 1787854416 ~ * cpe:/a:redhat:acm:2.16::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 2.17 1788572527 ~ * 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-2026-66780

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III. Intelligence Information for CVE-2026-66780

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Vendor Advisories for CVE-2026-66780 (16)

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-2026-75032 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-2026-66781 5.4 MEDIUM Submariner-operator: pprof debug endpoint enabled by default on 0.0.0.0:8082 without authe
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-532

V. Comments for CVE-2026-66780

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