CRITICAL 9.2 NVD
CVE-2026-115353
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
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.
References
- https://github.com/lepture/mistune/security/advisories/GHSA-9jjx-3hq3-hx4j
- https://www.vulncheck.com/advisories/mistune-before-3.3.0-path-traversal-via-include-direc
This critical severity vulnerability with a CVSS score of 9.2 was published on 2026-10-22 via NVD.
Risk Timeline
CVE Disclosed2026-10-22 · -1 days ago
Remediation Resources
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