HIGH 8.7 NVD
CVE-2026-115355
Mistune before 3.3.0 contains a path traversal vulnerability in the Include directive that allows attackers to read arbitrary files by supplying ../ sequences i
Mistune before 3.3.0 contains a path traversal vulnerability in the Include directive that allows attackers to read arbitrary files by supplying ../ sequences in include paths. Attackers can also inject HTML through unescaped error messages and included file contents to perform cross-site scripting even when escape=True is set.
References
- https://github.com/lepture/mistune/security/advisories/GHSA-h7ww-273w-6cm8
- https://www.vulncheck.com/advisories/mistune-before-3.3.0-path-traversal-and-xss-via-inclu
This high severity vulnerability with a CVSS score of 8.7 was published on 2026-10-22 via NVD.
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