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.
{ "versions": [ { "introduced": "0" }, { "fixed": "0.14.1" } ] }
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-46656.json"