CVE-2026-6388
Argocd-image-updater: argocd image updater: cross-namespace privilege escalation via insufficient namespace validation
- State
- Published
- Severity
- 9.1 Critical
- Published
- Apr 15, 2026
- Updated
- Jul 15, 2026
- Reserved
- Apr 15, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 9.1 Critical | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:L | redhat |
| 3.1 | 9.1 Critical | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:L | redhat-SADP |
Weaknesses
- CWE-1220 Insufficient Granularity of Access Control
Affected Products
| Product | Versions |
|---|---|
Red Hat OpenShift GitOpsRed Hat |
References
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