The rest-client gem 1.6.10 through 1.6.13 for Ruby, as distributed on RubyGems.org, included a code-execution backdoor inserted by a third party. Versions <=1.6.9 and >=1.6.14 are unaffected.
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-15224.json"
[ { "events": [ { "introduced": "1.6.10" }, { "last_affected": "1.6.13" } ] }, { "events": [ { "introduced": "1.6.10" }, { "last_affected": "1.6.13" } ] } ]