python-markdownify (aka markdownify) before 0.14.1 allows large headline prefixes such as <h9999999> in addition to <h1> through <h6>. This causes memory consumption.
{ "nvd_published_at": "2025-04-26T22:15:17Z", "cwe_ids": [ "CWE-1284" ], "severity": "LOW", "github_reviewed": true, "github_reviewed_at": "2025-04-28T14:34:51Z" }