CVE-2026-6388 - Vulnerability Analysis

Overview

ArgoCD Image Updater contains a broken access control vulnerability caused by insufficient validation of ImageUpdater resource permissions in multi-tenant environments, letting attackers bypass namespace boundaries and trigger unauthorized image updates, exploit requires permissions to create or modify ImageUpdater resources.

Severity & Score

Impact

Attackers can escalate privileges across namespaces, causing unauthorized application updates and compromising application integrity.

Mitigation

Update to the latest version with proper validation of ImageUpdater resource permissions.

References

• https://access.redhat.com/security/cve/CVE-2026-6388
• https://bugzilla.redhat.com/show_bug.cgi?id=2458766

Related Resources

• Vulnerability Intelligence Dashboard
• Credential Scanner