Information Exposure Affecting github.com/argoproj/argo-workflows/server/clusterworkflowtemplate package, versions <3.7.11>=4.0.0-rc1 <4.0.2
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-GOLANG-GITHUBCOMARGOPROJARGOWORKFLOWSSERVERCLUSTERWORKFLOWTEMPLATE-15460784
- published11 Mar 2026
- disclosed11 Mar 2026
- creditMasamuneee
Introduced: 11 Mar 2026
CVE-2026-28229 Â (opens in a new tab)How to fix?
Upgrade github.com/argoproj/argo-workflows/server/clusterworkflowtemplate to version 3.7.11, 4.0.2 or higher.
Overview
Affected versions of this package are vulnerable to Information Exposure via the workflow_template_server and cluster_workflow_template_server components. An attacker can obtain sensitive information, such as embedded secrets and resource manifests, by sending unauthorized requests with a forged or invalid token.