CVE-2026-59924
Last modified
CVE-2026-59924 is a medium-severity vulnerability rated 5.9/10 on the CVSS scale. 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 crafted include paths to access files outside that directory when markdown files are processed using md.read(). EPSS estimates a 0.33% chance of exploitation in the next 30 days.
Description
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 crafted include paths to access files outside that directory when markdown files are processed using md.read(). This issue is fixed in version 3.3.0.
Metrics
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Mistune Project | Mistune | < 3.3.0 |
References
- https://github.com/lepture/mistune/security/advisories/GHSA-r4rv-85jg-w4mfExploit, Vendor Advisory
- https://github.com/lepture/mistune/security/advisories/GHSA-r4rv-85jg-w4mfExploit, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
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