Argo Workflows is an open source container-native workflow engine for orchestrating parallel jobs on Kubernetes. Prior to 4.0.2 and 3.7.11, Workflow templates endpoints allow any client to retrieve WorkflowTemplates (and ClusterWorkflowTemplates). Any request with a Authorization: Bearer nothing token can leak sensitive template content, including embedded Secret manifests. This vulnerability is fixed in 4.0.2 and 3.7.11.
History

Fri, 13 Mar 2026 00:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-306
References
Metrics threat_severity

None

threat_severity

Important


Thu, 12 Mar 2026 10:15:00 +0000

Type Values Removed Values Added
First Time appeared Argoproj
Argoproj argo-workflows
Vendors & Products Argoproj
Argoproj argo-workflows

Wed, 11 Mar 2026 18:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 11 Mar 2026 16:00:00 +0000

Type Values Removed Values Added
Description Argo Workflows is an open source container-native workflow engine for orchestrating parallel jobs on Kubernetes. Prior to 4.0.2 and 3.7.11, Workflow templates endpoints allow any client to retrieve WorkflowTemplates (and ClusterWorkflowTemplates). Any request with a Authorization: Bearer nothing token can leak sensitive template content, including embedded Secret manifests. This vulnerability is fixed in 4.0.2 and 3.7.11.
Title Argo Workflows has unauthorized access to Argo Workflows Template
Weaknesses CWE-863
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2026-03-11T15:37:47.338Z

Updated: 2026-03-11T17:33:15.219Z

Reserved: 2026-02-25T15:28:40.651Z

Link: CVE-2026-28229

cve-icon Vulnrichment

Updated: 2026-03-11T17:33:04.105Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-03-11T16:16:40.477

Modified: 2026-03-12T21:08:22.643

Link: CVE-2026-28229

cve-icon Redhat

Severity : Important

Publid Date: 2026-03-11T15:37:47Z

Links: CVE-2026-28229 - Bugzilla