There is an OS command injection vulnerability in Ruby Rake before 12.3.3 in Rake::FileList when supplying a filename that begins with the pipe character |.
{
"severity": "MODERATE",
"github_reviewed": true,
"cwe_ids": [
"CWE-78"
],
"nvd_published_at": null,
"github_reviewed_at": "2020-02-25T15:50:03Z"
}