CVE-2026-115353
HIGH
NVD
CVSS Score
8.6
Severity
HIGH
Published
Oct 22, 2026
Vendor
unknown
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.