CVE-2026-70398

Multicloud-integrations: multicloud-integrations: gitopscluster.spec.argoserver.argonamespace writes spoke bearer tokens to attacker-chosen namespace

Published Aug 12, 2026 CVSS 3.1 · 9.6 Critical EPSS < 1% KEV · Not listed
Description
A flaw was found in multicloud-integrations, a component of Red Hat Advanced Cluster Management (RHACM). This vulnerability allows an authenticated user, referred to as a tenant, to manipulate the GitOpsCluster controller. By exploiting this, a tenant can redirect sensitive spoke cluster bearer tokens from secure locations to a namespace they control. This unauthorized access to tokens can lead to the disclosure of critical information and bypass security policies within ArgoCD AppProjects.

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.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
CPEs cpe:/a:redhat:acm:2 cpe:/a:redhat:acm:2.13::el9
cpe:/a:redhat:acm:2.15::el9
cpe:/a:redhat:acm:2.17::el9
References
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
Metrics ssvc

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

Type Values Removed Values Added
Description A flaw was found in multicloud-integrations, a component of Red Hat Advanced Cluster Management (RHACM). This vulnerability allows an authenticated user, referred to as a tenant, to manipulate the GitOpsCluster controller. By exploiting this, a tenant can redirect sensitive spoke cluster bearer tokens from secure locations to a namespace they control. This unauthorized access to tokens can lead to the disclosure of critical information and bypass security policies within ArgoCD AppProjects.
Title Multicloud-integrations: multicloud-integrations: gitopscluster.spec.argoserver.argonamespace writes spoke bearer tokens to attacker-chosen namespace
First Time appeared Redhat
Redhat acm
Weaknesses CWE-441
CPEs cpe:/a:redhat:acm:2
Vendors & Products Redhat
Redhat acm
References
Metrics cvssV3_1

{'score': 9.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Sep 5, 2026, 2:23 PM
Reserved
Aug 11, 2026, 5:40 PM
Status
Awaiting Analysis
Published
Aug 12, 2026, 2:16 AM
Modified
Oct 24, 2026, 4:10 PM
Severity
Critical
Public date
Aug 11, 2026, 12:00 AM