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CVE-2026-66782— Submariner-operator: submariner-operator: broker api bearer token stored cleartext in cr spec

Quick assessment

Affected
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2
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.

在 Submariner 操作器（operator）中发现了一个安全漏洞。该漏洞会导致 Submariner 自定义资源（CR）规范中暴露出长期有效的代理（broker）服务账户（Service Account, SA）的 bearer token。攻击者若能够访问集群的 etcd 数据库，或通过 命令获取相关资源，便可能窃取该 token。一旦持有此 token，攻击者即可获得对整个服务网格（mesh network）的完全控制权限，从而未经授权地管理网络资源，例如端点（endpoints）和密钥（secrets

CVSS 7.8 · High EPSS 0.08% · P0

Affected Version Matrix 4

VendorProduct Version RangeStatus
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2 any affected
any affected
any affected
any affected
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I. Basic Information for CVE-2026-66782

Vulnerability Information
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Vulnerability Title
Submariner-operator: submariner-operator: broker api bearer token stored cleartext in cr spec
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in the Submariner operator. This vulnerability allows for the exposure of a long-lived broker service account (SA) bearer token within the Submariner Custom Resource (CR) specification. An attacker with access to the cluster's etcd database or through `kubectl get` commands could obtain this token. The possession of this token grants full control over the mesh network, enabling unauthorized management of network resources such as endpoints and secrets.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
敏感数据的明文存储
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2 - cpe:/a:redhat:acm:2
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2 - cpe:/a:redhat:acm:2
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2 - cpe:/a:redhat:acm:2
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2 - cpe:/a:redhat:acm:2

II. Public POCs for CVE-2026-66782

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III. Intelligence Information for CVE-2026-66782

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Vendor Advisories for CVE-2026-66782 (2)

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

CVE-2026-66780 9.9 CRITICAL Submariner-operator: submariner-operator: flat broker trust model grants every spoke full
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-2026-66783 8.2 HIGH Submariner-operator: submariner-operator: arbitrary image override enables privileged code
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-2026-66781 6.5 MEDIUM Submariner-operator: submariner-operator: ipsec psk stored cleartext in submariner cr spec
CVE-2026-75032 6.3 MEDIUM Bluez: bluez: out-of-bounds read in avrcp parse_media_element and parse_media_folder
CVE-2026-75485 5.5 MEDIUM Must-gather: must-gather: cluster proxy object dumped raw, bypassing inspect redaction of
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

IV. Related Vulnerabilities

Same product: Red Hat Advanced Cluster Management for Kubernetes 2
Same vendor: Red Hat
Same weakness: CWE-312

V. Comments for CVE-2026-66782

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