CVE-2026-42296Argo Workflows has incomplete fix for CVE-2026-31892: hostNetwork, securityContext, serviceAccountName bypass templateReferencing Strict/Secure

Açıklama

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.

Veri: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Bilgiler kaynaktaki haliyle, İngilizce yayımlanır.

Etkilenen ürünler ve sürümler

Kaynaklar ve yamalar

• https://github.com/argoproj/argo-workflows/security/advisories/GHSA-3775-99mw-8rp4 ExploitMitigationVendor Advisory
• https://github.com/argoproj/argo-workflows/commit/534f4ff1cbd86908e8ff76d97d553ad5a49a950d Patch
• https://github.com/argoproj/argo-workflows/releases/tag/v3.7.14 Release Notes
• https://github.com/argoproj/argo-workflows/releases/tag/v4.0.5 Release Notes
• https://access.redhat.com/security/cve/CVE-2026-42296
• https://bugzilla.redhat.com/show_bug.cgi?id=2468446
• https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42296.json