CVE-2026-115355: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in lepture mistune
Description
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.
CVSS v4.0
Score 8.7high
Affected software
lepture
mistune
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-10-22T11:20:02.627Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ada64a04d27ba8daa755e5f
Added to database: 10/22/2026, 19:31:44 UTC
Last updated: 10/22/2026, 19:31:44 UTC
Views: 3
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