Path Traversal in Lepture Mistune
CVE-2026-59924
Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.3.0, Include.parse() joins and normalizes user-supplied include paths without verifying that the result remains within the intended markdown directory, allowing cra…
Vulnerability class: Path Traversal (Directory Traversal)
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Lepture Mistune — versions < 3.3.0
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-59924?
- CVE-2026-59924 is a medium-severity vulnerability in Lepture Mistune, classified under Path Traversal. CVSS score: 5.9/10. Published 2026-07-08.
- How severe is CVE-2026-59924?
- Medium severity. CVSS v3 base score is 5.9 out of 10.