CVE-2026-28229
Argo Workflows has unauthorized access to Argo Workflows Template
- State
- Published
- Severity
- 9.8 Critical
- Published
- Mar 11, 2026
- Updated
- Jul 15, 2026
- Reserved
- Feb 25, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 9.8 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | GitHub_M |
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N | redhat-SADP |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
argo-workflowsargoproj |
|
References
- https://github.com/argoproj/argo-workflows/security/advisories/GHSA-56px-hm34-xqj5
- https://access.redhat.com/security/cve/CVE-2026-28229vdb-entry
- RHBZ#2446549issue-tracking
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-28229.json
- https://access.redhat.com/errata/RHSA-2026:10184vendor-advisory
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