markdown2 >=1.0.1.18, fixed in 2.4.0, is affected by a regular expression denial of service vulnerability. If an attacker provides a malicious string, it can make markdown2 processing difficult or delayed for an extended period of time.
{
"nvd_published_at": "2021-03-03T16:15:00Z",
"severity": "HIGH",
"github_reviewed": true,
"cwe_ids": [
"CWE-1333"
],
"github_reviewed_at": "2021-05-12T21:02:47Z"
}