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CVE-2026-6388— Argocd-image-updater: argocd image updater: cross-namespace privilege escalation via insufficient namespace validation

CVSS 9.1 · Critical EPSS 0.03% · P9
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I. Basic Information for CVE-2026-6388

Vulnerability Information
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Vulnerability Title
Argocd-image-updater: argocd image updater: cross-namespace privilege escalation via insufficient namespace validation
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
CWE-1220
Source: NVD (National Vulnerability Database)
Vulnerability Title
Red Hat OpenShift GitOps 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Red Hat OpenShift GitOps是美国红帽（Red Hat）公司的一个自动化部署服务。 Red Hat OpenShift GitOps存在安全漏洞，该漏洞源于验证不足，可能导致攻击者绕过命名空间边界，触发跨命名空间权限提升，影响应用程序完整性。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

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Affected Products

VendorProductAffected VersionsCPESubscribe
Red HatRed Hat OpenShift GitOps-cpe:/a:redhat:openshift_gitops:1

II. Public POCs for CVE-2026-6388

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III. Intelligence Information for CVE-2026-6388

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Same Patch Batch · Red Hat · 2026-04-15 · 10 CVEs total

CVE-2026-63847.3 HIGHGimp: gimp: arbitrary code execution or denial of service via buffer overflow in gif image
CVE-2026-63856.5 MEDIUMFfmpeg: ffmpeg: denial of service and potential arbitrary code execution via signed intege
CVE-2026-409196.1 MEDIUMGimp: gimp: denial of service via specially crafted seattle filmworks file
CVE-2026-409185.5 MEDIUMGimp: gimp: denial of service via crafted pvr image file
CVE-2026-409155.5 MEDIUMGimp: gimp: heap buffer overflow due to integer overflow in fits image loader
CVE-2026-62455.5 MEDIUMSssd: out-of-bounds read in the sssd
CVE-2026-63835.4 MEDIUMKubevirt: kubevirt: unauthorized subresource access due to improper rbac evaluation
CVE-2026-409175.0 MEDIUMGimp: gimp: application crashes or information disclosure via crafted icns image files
CVE-2026-409165.0 MEDIUMGimp: gimp: denial of service due to stack buffer overflow in tim image loader

IV. Related Vulnerabilities

Same vendor: Red Hat
Same weakness: CWE-1220

V. Comments for CVE-2026-6388

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