VULNERABILITY INTELLIGENCE
CVE-2026-6388
CVSS score9.1 CRITICAL
EPSS probability0.36%
CISA KEVNot currently listed
Published2026-04-15
Last modified2026-10-26
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:L
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.
Weakness classification
- secalert@redhat.com: CWE-1220
- 0b0ca135-0b70-47e7-9f44-1890c2a1c46c: CWE-1220