An issue was discovered in the openssl crate before 0.9.0 for Rust. There is an SSL/TLS man-in-the-middle vulnerability because certificate verification is off by default and there is no API for hostname verification.
{ "versions": [ { "introduced": "0" }, { "fixed": "0.9.0" } ] }
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-10931.json"