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critical advisory

ArgoCD Image Updater Namespace Bypass Vulnerability (CVE-2026-6388)

CVE-2026-6388 describes a flaw in ArgoCD Image Updater that allows an attacker with permissions to create or modify an ImageUpdater resource in a multi-tenant environment to bypass namespace boundaries and trigger unauthorized image updates.

argocd privilege-escalation kubernetes cve-2026-6388
2r 1t 1c