CVE-2026-70496

Search-v2-operator: search-v2-operator: operator clusterrole is cluster-admin equivalent via impersonate, rbac write, csr approve, and manifestwork

Published Aug 19, 2026 CVSS 3.1 · 9.9 Critical EPSS < 1% KEV · Not listed
Description
A flaw was found in search-v2-operator. The operator's ClusterRole has permissions equivalent to a cluster administrator, allowing it to impersonate other entities, write Role-Based Access Control (RBAC) configurations, approve Certificate Signing Requests (CSRs), and manage ManifestWork. This grants excessive privileges beyond what is necessary for the operator's intended function, potentially leading to privilege escalation within the cluster.

Analysis

AI-generated

Technical impact

The flaw resides in the search-v2-operator’s ClusterRole, which grants it permissions equivalent to a cluster administrator, including impersonation of other users, writing RBAC configurations, approving certificate signing requests, and managing ManifestWork resources. This over-privilege enables an attacker who can manipulate the operator to elevate their capabilities within the cluster, potentially allowing full control over cluster configuration, secrets, and node resources.

Affected Systems

Affected systems include Red Hat Advanced Cluster Management for Kubernetes 2. All instances running this operator are potentially vulnerable, regardless of minor version differences, because the flaw is tied to the operator’s default role configuration.

Risk and Exploitability

The CVSS score of 9.9 indicates that the vulnerability can have a catastrophic impact if exploited. The EPSS score is not available, but the lack of an official workaround and the absence of a CISA KEV listing do not reduce the risk. An attacker with access to a compromised pod or service account trusted by the operator could exploit the privileged role to gain cluster-admin rights, leading to data exfiltration, denial of service, or further lateral movement.

Remediation

Vendor Workaround

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.


OpenCVE Recommended Actions

  • Apply the vendor’s security patch or upgrade to a version where the search‑v2‑operator’s ClusterRole has been hardened to only the required permissions.
  • If a patch is not yet available, manually edit the operator’s ClusterRole by removing cluster-admin level permissions (Impersonate, rbacWrite, csrApprove, manifestwork) and replacing them with a custom role that grants only the minimal rights needed for search operations.
  • Conduct an RBAC audit across the cluster to ensure no other components inadvertently grant cluster-admin privileges, and enforce least-privilege by constraining service accounts used by the operator.
  • No official workaround has been released by Red Hat for this issue; the temporary measures above are the best available mitigations until a vendor patch is available.

Generated by OpenCVE AI on August 20, 2026 at 13:02 UTC.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Redhat advanced Cluster Management For Kubernetes
Vendors & Products Redhat advanced Cluster Management For Kubernetes
Type Values Removed Values Added
Description A flaw was found in search-v2-operator. The operator's ClusterRole has permissions equivalent to a cluster administrator, allowing it to impersonate other entities, write Role-Based Access Control (RBAC) configurations, approve Certificate Signing Requests (CSRs), and manage ManifestWork. This grants excessive privileges beyond what is necessary for the operator's intended function, potentially leading to privilege escalation within the cluster.
Title Search-v2-operator: search-v2-operator: operator clusterrole is cluster-admin equivalent via impersonate, rbac write, csr approve, and manifestwork
First Time appeared Redhat
Redhat acm
Weaknesses CWE-250
CPEs cpe:/a:redhat:acm:2
Vendors & Products Redhat
Redhat acm
References
Metrics cvssV3_1

{'score': 9.9, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H'}

Weaknesses
  • CWE-250

    Execution with Unnecessary Privileges

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Sep 5, 2026, 2:24 PM
Reserved
Aug 4, 2026, 3:54 PM
Status
Awaiting Analysis
Published
Aug 19, 2026, 7:17 PM
Modified
Oct 26, 2026, 11:10 AM
Severity
Important
Public date
Aug 19, 2026, 3:00 PM