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CVE-2026-70495— Search-v2-operator: search-v2-operator: cluster-wide impersonate on users/groups shared across 4 pods grants hub system:masters

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.

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 2版本存在权限许可和访问控制问题漏洞，该漏洞源于search-serviceaccount权限过于宽泛，可能允许攻击者冒充整个集群中的用户和组，进而获得system:masters访问权限，完全控制集群。

CVSS 8.8 · High EPSS 0.10% · P1

Affected Version Matrix 2

VendorProduct Version RangeStatus
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2 any affected
any affected
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I. Basic Information for CVE-2026-70495

Vulnerability Information
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Vulnerability Title
Search-v2-operator: search-v2-operator: cluster-wide impersonate on users/groups shared across 4 pods grants hub system:masters
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in search-v2-operator. This component's `search-serviceaccount` has overly broad permissions, allowing it to impersonate users and groups across the entire cluster. If an attacker gains access to any of the pods running under this service account, they could exploit this to achieve `system:masters` access, granting them full control over the cluster.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
特权管理不恰当
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 2版本存在权限许可和访问控制问题漏洞，该漏洞源于search-serviceaccount权限过于宽泛，可能允许攻击者冒充整个集群中的用户和组，进而获得system:masters访问权限，完全控制集群。
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 - 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-2026-70495

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III. Intelligence Information for CVE-2026-70495

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Vendor Advisories for CVE-2026-70495 (2)

Same Patch Batch · Red Hat · 2026-08-17 · 5 CVEs total

CVE-2026-66792 9.9 CRITICAL Multicloud-operators-subscription: multicloud-operators-subscription: isclusteradmin() tru
CVE-2026-66795 9.1 CRITICAL Managedcluster-import-controller: managedcluster-import-controller: csr auto-approver does
CVE-2026-71472 9.1 CRITICAL Acm-search-v2-rhel9: search-v2-operator: shell-command and sql injection in postgresql-sta
CVE-2026-15218 7.9 HIGH Models-as-a-service: red hat openshift ai: maas-api and maas-controller serviceaccounts wi

IV. Related Vulnerabilities

Same product: Red Hat Advanced Cluster Management for Kubernetes 2
Same vendor: Red Hat
Same weakness: CWE-269

V. Comments for CVE-2026-70495

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