CRITICAL SeverityCVSS 3.19.1CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:L
CVE-2026-6388
Last updated Apr 16, 2026 · Published 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.
Affected products
1 listed- Red Hat:Red Hat OpenShift GitOps
Mappings
CWE
CWE-1220
CAPEC
None listed.
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