pysaml2 version 4.4.0 and older accept any password when run with python optimizations enabled. This allows attackers to log in as any user without knowing their password.
{
"nvd_published_at": "2018-01-02T23:29:00Z",
"severity": "CRITICAL",
"cwe_ids": [
"CWE-287"
],
"github_reviewed_at": "2020-06-16T21:27:01Z",
"github_reviewed": true
}