Unknown · Python-Markdownify · CVE-2025-46656
**Name of the Vulnerable Software and Affected Versions**
python-markdownify (aka markdownify) versions prior to 0.14.1
**Description**
The issue allows large headline prefixes, such as <h9999999>, in addition to the standard <h1> through <h6> tags. This can cause excessive memory consumption.
**Recommendations**
For versions prior to 0.14.1, update to version 0.14.1 or later to resolve the issue. As a temporary workaround, consider restricting the use of large headline prefixes to minimize the risk of excessive memory consumption.