lib/yard/core_ext/file.rb in the server in YARD before 0.9.11 does not block relative paths with an initial ../ sequence, which allows attackers to conduct directory traversal attacks and read arbitrary files.
{
"github_reviewed": true,
"severity": "HIGH",
"cwe_ids": [
"CWE-22"
],
"nvd_published_at": null,
"github_reviewed_at": "2020-06-16T21:37:31Z"
}