CVE-2026-6388
Argocd-image-updater: argocd image updater: cross-namespace privilege escalation via insufficient namespace validation
CVSS Score
9.1
EPSS Score
0.0%
EPSS Percentile
8th
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.
| CWE | CWE-1220 |
| Vendor | red hat |
| Product | red hat openshift gitops |
| Published | Apr 15, 2026 |
| Last Updated | Apr 16, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:L Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
High
Availability
Low
Affected Versions
Red Hat / Red Hat OpenShift GitOps
All versions affected