CVE-2026-28229
Argo Workflows has unauthorized access to Argo Workflows Template
CVSS Score
9.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-863 |
| Vendor | argoproj |
| Product | argo-workflows |
| Published | Mar 11, 2026 |
| Last Updated | Jul 15, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
argoproj / argo-workflows
>= 4.0.0, < 4.0.2 < 3.7.11
References
github.com: https://github.com/argoproj/argo-workflows/security/advisories/GHSA-56px-hm34-xqj5 access.redhat.com: https://access.redhat.com/security/cve/CVE-2026-28229 bugzilla.redhat.com: https://bugzilla.redhat.com/show_bug.cgi?id=2446549 security.access.redhat.com: https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-28229.json access.redhat.com: https://access.redhat.com/errata/RHSA-2026:10184