The omniauth-weibo-oauth2 gem 0.4.6 for Ruby, as distributed on RubyGems.org, included a code-execution backdoor inserted by a third party. Versions through 0.4.5, and 0.5.1 and later, are unaffected.
{
"github_reviewed": true,
"github_reviewed_at": "2023-01-27T00:19:36Z",
"nvd_published_at": "2020-02-07T14:15:00Z",
"severity": "CRITICAL",
"cwe_ids": [
"CWE-94"
]
}