A security vulnerability exists in the argo-workflows package affecting versions of the @tootallnate/once package before version 3. The affected versions of argo-workflows are prior to 4.0.15-r2 and 4.1.6-r1. The vulnerability has a low severity score and impacts availability without affecting confidentiality or integrity. A patch is available in versions 4.0.15-r2 and 4.1.6-r1.