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CVE PROGRAM SOURCE RECORD9.1 Critical

CVE-2026-6388

Argocd-image-updater: argocd image updater: cross-namespace privilege escalation via insufficient namespace validation

Description

A flaw was found in ArgoCD Image Updater. This vulnerability allows an attacker, with permissions to create or modify an ImageUpdater resource in a multi-tenant environment, to bypass namespace boundaries. By exploiting insufficient validation, the attacker can trigger unauthorized image updates on applications managed by other tenants. This leads to cross-namespace privilege escalation, impacting application integrity through unauthorized application updates.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Red Hat Red Hat OpenShift GitOps

Default version status: affected

References