Medium [CVE-2026-59924] Information disclosure via crafted include paths
This medium-severity Red Hat Linux advisory covers CVE-2026-59924 affecting Migration Toolkit for Applications 8, Red Hat OpenShift AI (RHOAI), Red Hat OpenShift Container Platform 4.
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Summary
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. This can lead to information disclosure when markdown files are processed.
This Moderate impact flaw in Mistune, a Python Markdown parser, allows for information disclosure. When processing specially crafted markdown files, an attacker can exploit improper path verification in the `Include.parse()` function to access files outside the intended markdown directory.
Red Hat severity: Moderate — CVSS 5.9 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N). Weakness: CWE-22.
Affected Red Hat products: Migration Toolkit for Applications 8; Red Hat OpenShift AI (RHOAI); Red Hat OpenShift Container Platform 4. Red Hat does not currently list a fixing RHSA for this CVE.
- < 3.3.0
Official advisory · high-confidence parse· fetched 13 days ago·verify at source
Mitigation checklist
- Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Official advisory · high-confidence parse· fetched 13 days ago·verify at source
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