The json-jwt gem before 1.11.0 for Ruby lacks an element count during the splitting of a JWE string.
{
"cwe_ids": [
"CWE-287"
],
"github_reviewed": true,
"github_reviewed_at": "2019-11-14T15:24:51Z",
"severity": "HIGH",
"nvd_published_at": "2019-11-12T15:15:00Z"
}