A high-severity security vulnerability (CVE-2024-21538) affects the argo-workflows package due to an issue in versions of the cross-spawn package before version 6. The affected argo-workflows versions are prior to 4.0.15-r2 and 4.1.6-r1. This vulnerability does not impact confidentiality or integrity but results in a high impact on availability. A patch is available in versions 4.0.15-r2 and 4.1.6-r1.