CVE-2026-31892

Argo Workflows is an open source container-native workflow engine for orchestrating parallel jobs on Kubernetes. From 2.9.0 to before 4.0.2 and 3.7.11, A user who can submit Workflows can completely bypass all security settings defined in a WorkflowTemplate by including a podSpecPatch field in their Workflow submission. This works even when the controller is configured with templateReferencing: Strict, which is specifically documented as a mechanism to restrict users to admin-approved templates. The podSpecPatch field on a submitted Workflow takes precedence over the referenced WorkflowTemplate during spec merging and is applied directly to the pod spec at creation time with no security validation. This vulnerability is fixed in 4.0.2 and 3.7.11.

Affected products

Argo Workflows, Kubernetes

Argoproj Argo Workflows

< 3.7.11, 4.0.2

Fix

Available

CVSS 3.1

9.9 CRITICAL

EPSS

0.4% (34th percentile)

Weakness

CWE-863, CWE-807

NVD status

Modified

Published

2026-03-11

No exploit for CVE-2026-31892 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.