Jekyll through 3.6.2, 3.7.x through 3.7.3, and 3.8.x through 3.8.3 allows attackers to access arbitrary files by specifying a symlink in the "include" key in the "_config.yml" file.
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2018-17567.json"