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CVE-2026-115354

Mistune before 3.3.0 Arbitrary Local File Read via Include Directive PUBLISHED

Description (CNA)

Mistune before 3.3.0 contains a path traversal vulnerability in the opt-in Include directive that allows attackers to read local files by supplying relative or absolute include paths. Attackers who submit Markdown rendered via Markdown.read() can disclose files such as /etc/passwd and inject unescaped HTML or script content into rendered output.

Affected (CNA)

Vendor / productVersions
lepture / mistuneaffected 0 before 3.3.0; unaffected 3.3.0

CWE

CWE-22

References