None of them AFAICS are "actual" issues (we don't run that code anywhere near production), but the warnings go all the way up to critical (eslint-utils and handlebars) along with high (set-value, mixin-deep, lodash, lodash.merge, handlebars again, lodash again, js-yaml), moderate (4) and low (3).
Unfortunately I can't build master locally, so I can't fix it for you.