AZL-88406
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-88406.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/AZL-88406
- Upstream
- Published
- 2026-05-26T21:16:39Z
- Modified
- 2026-08-28T17:47:37Z
- Summary
- CVE-2026-44899 affecting package python-mistune for versions less than 3.2.1-1
- Details
-
Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.2.1, the Image directive plugin validates the :width: and :height: options with a regex compiled as _num_re = re.compile(r"^\d+(?:.\d*)?"). When the validated value is not a plain integer, render_block_image() inserts it directly into a style="width:...;" or style="height:...;" attribute. Because the value was accepted by the prefix-only regex, any CSS after the leading digits reaches the style= attribute verbatim and without escaping. This vulnerability is fixed in 3.2.1.
- References