Ghostwire

CVE-2026-6388: A flaw was found in ArgoCD Image Updater. This vulnerability allows an attacker, with permissions to create or modify an...

CRITICAL CVSS 9.5

Published: April 15, 2026 | Last Modified: April 16, 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.

Ghostwire Analysis — What This Means Practically

This analysis is generated by Ghostwire from NVD, CISA KEV, EPSS, and open-source intelligence data. Verify findings through primary sources before acting.

Security Coverage (2 articles)

References