CVE-2026-6388

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{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": null}], "enrichment": {"confidence": 84.0, "confidence_source": "matching", "scores": [{"score": 84.0, "source": "matching"}]}, "original": {"product": "Red Hat OpenShift GitOps", "source": "cna", "vendor": "Red Hat"}, "product": "openshift_gitops", "vendor": "redhat"}], "analysis": {"en": {"generated_at": "2026-04-16T02:17:56.249336+00:00", "value": {"mitigation_remediation": ["Configure AppProject resources to enforce strict tenant isolation within Red\u00a0Hat\u00a0OpenShift\u00a0GitOps environments.", "Restrict the permissions of the Argo\u00a0CD Image Updater controller so that it can operate only within its intended namespaces.", "Limit the ability of users to create or modify ImageUpdater resources to trusted administrators only.", "Audit RBAC policies to ensure that only necessary roles have permissions to manage ImageUpdater resources.", "Deploy the latest Red\u00a0Hat\u00a0OpenShift\u00a0GitOps release once an official patch becomes available."], "summary": {"action": "Apply Workaround", "impact": "Cross\u2011namespace privilege escalation leading to unauthorized image updates and application integrity loss"}, "threat_synthesis": {"affected_systems": "Red\u00a0Hat\u00a0OpenShift\u00a0GitOps (v1 or unspecified) is the affected product, as identified by the Red\u00a0Hat CPE entry cpe:/a:redhat:openshift_gitops:1.", "description_and_impact": "The flaw lies in ArgoCD Image Updater, permitting an attacker who can create or edit an ImageUpdater resource in a multi\u2011tenant environment to bypass namespace boundaries due to insufficient validation. The attacker can trigger image updates on applications belonging to other tenants, escalating privileges across namespaces and compromising the integrity of those applications.", "risk_and_exploitability": "The CVSS score of 9.1 indicates a high\u2011severity vulnerability. While the EPSS score is not available and the vulnerability is not listed in the KEV catalog, the lack of public exploits does not mitigate the risk. Attackers need only the ability to create or edit ImageUpdater resources, a privilege that can be granted to cluster\u2011admin or project\u2011admin roles. Once granted, the attacker can perform unrestricted image updates across namespaces, effectively achieving cross\u2011namespace privilege escalation. The attack vector is inferred to be privilege\u2011based, relying on misconfigured or overly permissive RBAC."}}}}, "created": "2026-04-16T02:30:21.676666+00:00", "updated": "2026-04-16T09:00:05.121581+00:00", "vendors": ["redhat", "redhat$PRODUCT$openshift_gitops"]}