DEBIAN-CVE-2026-44898
- Source
- https://security-tracker.debian.org/tracker/CVE-2026-44898
- Import Source
- https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-44898.json
- JSON Data
- https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-44898
- Upstream
- Published
- 2026-05-26T21:16:39Z
- Modified
- 2026-09-14T17:03:40Z
- 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, render_toc_ul() builds a
- table-of-contents tree from a list of (level, id, text) tuples. Both the id value (used as href="#") and the text value (used as the visible link label) are inserted into tags via a plain Python format string — with no HTML escaping applied to either value. When heading IDs are derived from user-supplied heading text (the standard use-case for readable slug anchors), an attacker can craft a heading whose text breaks out of the href="#..." attribute context, injecting arbitrary HTML tags including
- 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