CVE-2026-28229

high

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.

References

https://github.com/joshuaburnie/cve-watcher

https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-28229.json

https://github.com/argoproj/argo-workflows/security/advisories/GHSA-56px-hm34-xqj5

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-11196

https://bugzilla.redhat.com/show_bug.cgi?id=2446549

https://access.redhat.com/security/cve/CVE-2026-28229

https://access.redhat.com/errata/RHSA-2026:10184

Details

Source: Mitre, NVD

Published: 2026-03-11

Updated: 2026-07-15

Named Vulnerability: GO-2026-4678Named Vulnerability: GHSA-56px-hm34-xqj5

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:N/A:N

Severity: High

CVSS v3

Base Score: 7.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Severity: High

EPSS

EPSS: 0.00813