High severity8.6NVD Advisory· Published Oct 22, 2026· Updated Oct 22, 2026
CVE-2026-115353
CVE-2026-115353
Description
Mistune before 3.3.0 contains a path traversal vulnerability in the RST include directive that allows attackers to read arbitrary files by supplying relative or absolute paths. Attackers can submit markdown containing include directives referencing ../ sequences or absolute paths to embed sensitive files like credentials or environment data in rendered HTML.
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Affected products
1Patches
Vulnerability mechanics
References
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