DEBIAN-CVE-2026-44899
- Source
- https://security-tracker.debian.org/tracker/CVE-2026-44899
- Import Source
- https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-44899.json
- JSON Data
- https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-44899
- Upstream
- Published
- 2026-05-26T21:16:39Z
- Modified
- 2026-09-14T17:03:41Z
- Severity
-
- 6.1 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N CVSS Calculator
- Summary
- [none]
- 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
Affected packages
Debian:12 / mistune
Package
- Name
- mistune
- Purl
- pkg:deb/debian/mistune?arch=source&distro=bookworm
Debian:13 / mistune
Package
- Name
- mistune
- Purl
- pkg:deb/debian/mistune?arch=source&distro=trixie
Debian:14 / mistune
Package
- Name
- mistune
- Purl
- pkg:deb/debian/mistune?arch=source&distro=forky