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CVE-2026-72508— Multicloud-operators-subscription: multicloud-operators-subscription: hub and spoke serviceaccounts bound to wildcard rbac (*/*/*)

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.

Red Hat Advanced Cluster Management for Kubernetes是美国Red Hat公司的一个Kubernetes多集群管理平台。 Red Hat Advanced Cluster Management for Kubernetes存在权限许可和访问控制问题漏洞，该漏洞源于multicloud-operators-subscription组件问题，可能导致命名空间管理员租户通过创建Subscription自定义资源并利用高权限ServiceAccount执行混淆代理攻击

CVSS 9.9 · Critical EPSS 0.81% · P55
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I. Basic Information for CVE-2026-72508

Vulnerability Information
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Vulnerability Title
Multicloud-operators-subscription: multicloud-operators-subscription: hub and spoke serviceaccounts bound to wildcard rbac (*/*/*)
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in the multicloud-operators-subscription component of Red Hat Advanced Cluster Management (RHACM). This vulnerability allows a namespace-admin tenant to perform a confused-deputy attack by creating Subscription Custom Resources (CRs) that leverage a highly privileged ServiceAccount (SA). This enables the tenant to deploy arbitrary cluster-scoped resources, leading to privilege escalation and potential arbitrary code execution across the cluster.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
带着不必要的权限执行
Source: CVE Program / CVE List V5
Vulnerability Title
Red Hat Advanced Cluster Management for Kubernetes 权限许可和访问控制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Red Hat Advanced Cluster Management for Kubernetes是美国Red Hat公司的一个Kubernetes多集群管理平台。 Red Hat Advanced Cluster Management for Kubernetes存在权限许可和访问控制问题漏洞，该漏洞源于multicloud-operators-subscription组件问题，可能导致命名空间管理员租户通过创建Subscription自定义资源并利用高权限ServiceAccount执行混淆代理攻击
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 1787263584 ~ * cpe:/a:redhat:acm:2.11::el9
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.13 1787263693 ~ * cpe:/a:redhat:acm:2.13::el9
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.14 1787170830 ~ * cpe:/a:redhat:acm:2.14::el9
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.15 1787240030 ~ * cpe:/a:redhat:acm:2.15::el9
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.16 1787242321 ~ * cpe:/a:redhat:acm:2.16::el9
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.17 1787242108 ~ * cpe:/a:redhat:acm:2.17::el9

II. Public POCs for CVE-2026-72508

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III. Intelligence Information for CVE-2026-72508

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Vendor Advisories for CVE-2026-72508 (8)

Same Patch Batch · Red Hat · 2026-08-12 · 19 CVEs total

CVE-2026-72526 9.9 CRITICAL Multicloud-integrations: multicloud-integrations: pull-model propagation allows hub tenant
CVE-2026-73268 9.9 CRITICAL Cluster-curator-controller: cluster-curator-controller: spec.install.overridejob allows ar
CVE-2026-73269 9.9 CRITICAL Cluster-curator-controller: cluster-curator-controller: tenant-controllable trigger create
CVE-2026-70398 9.6 CRITICAL Multicloud-integrations: multicloud-integrations: gitopscluster.spec.argoserver.argonamesp
CVE-2026-71471 9.0 CRITICAL Acm-search-v2-rhel9: search-v2-operator: hub search cr collector.imageoverride propagated
CVE-2026-13622 8.8 HIGH Kubevirt: virt-handler-rhel9: kubevirt: virt-handler migration proxy follows symlinks allo
CVE-2026-71473 8.5 HIGH Acm-search-v2-rhel9: search-v2-operator: addonfactory.getvaluesfromaddonannotation enables
CVE-2026-73122 7.7 HIGH Multicloud-operators-channel: multicloud-operators-channel: auto-generated role grants eve
CVE-2026-66878 7.7 HIGH Multicloud-operators-subscription: multicloud-operators-subscription: fetchchannelreferenc
CVE-2026-19654 7.5 HIGH Rsyslog: a configuration-dependent issue in rsyslog's optional imptcp input module can all
CVE-2026-71469 7.5 HIGH Acm-search-v2-api-rhel9: search-v2-api: unbounded tokenreviews cache allows unauthenticate
CVE-2026-18726 6.5 MEDIUM Open-iscsi: open-iscsi: denial of service in iscsiuio router advertisement parsing
CVE-2026-18727 6.5 MEDIUM Open-iscsi: open-iscsi: integer underflow in iscsiuio dhcpv6 parsing
CVE-2026-71846 6.5 MEDIUM Insights-client: insights-client: clusterrole grants cluster-wide secrets get/list/watch b
CVE-2026-64927 6.4 MEDIUM Multicloud-operators-channel: multicloud-operators-channel: cross-namespace secret and con
CVE-2026-18663 5.9 MEDIUM 389-ds-base: 389-ds-base: pre-authentication double-free in get_ldapmessage_controls_ext()
CVE-2026-19130 5.8 MEDIUM Provider-credential-controller: provider-credential-controller: cross-namespace credential
CVE-2026-19548 5.5 MEDIUM Binutils: binutils: multiple use-after-free in add_archive_element via lto plugin processi

IV. Related Vulnerabilities

Same product: Red Hat Advanced Cluster Management for Kubernetes 2.11
Same vendor: Red Hat
Same weakness: CWE-250

V. Comments for CVE-2026-72508

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