Report: CVE-2026-42296 - Argo Workflows has incomplete fix for CVE-2026-31892: hostNetwork, securityConte

Report: CVE-2026-42296 - Argo Workflows has incomplete fix for CVE-2026-31892: hostNetwork, securityConte

CVE ID :CVE-2026-42296 Published : May 9, 2026, 4:16 a.m. | 1 hour, 28 minutes ago Description :Argo Workflows is an open source container-native workflow engine for orchestrating parallel jobs on Kubernetes. Prior to versions 3.7.14 and 4.0.5, a user with create Workflow permission can bypass templateReferencing: Strict to get host network access, switch service accounts, override pod security context, add tolerations to schedule on control-plane nodes, or enable SA token mounting. This defeats the stated purpose of the feature. The practical impact depends on what Kubernetes-level controls are in place. Clusters with PodSecurity admission or OPA/Gatekeeper would independently block some of these (like hostNetwork). Clusters that rely on Argo's Strict mode as the primary enforcement layer are fully exposed. This issue has been patched in versions 3.7.14 and 4.0.5. Severity: 8.1 | HIGH Visit the link for more details, such as CVSS details, affected products, timeline, and more...

CVE Details

Severity
HIGH
Published
May 9, 2026
Affected Product: Kubernetes
Attack Vector: network