CVE-2026-28229

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.

Score

CVSS 3.1 9.8 Critical

Status

Modified - security-advisories@github.com

Published

2026-03-11

Last modified

2026-07-15

Weaknesses

CWE-306, CWE-863

Affected products

• Argo-workflows (Argoproj)
• Argo Workflows (Argoproj)
• Openshift Ai (Redhat)

References

• https://github.com/argoproj/argo-workflows/security/advisories/GHSA-56px-hm34-xqj5
• https://access.redhat.com/errata/RHSA-2026:10184
• https://access.redhat.com/security/cve/CVE-2026-28229
• https://bugzilla.redhat.com/show_bug.cgi?id=2446549
• https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-28229.json