Mistune: Path Traversal and XSS in Include directive

影響: pip:mistune <= 3.2.0 → 3.3.0

The Include directive in src/mistune/directives/include.py does not validate that the resolved file path stays within the source directory, allowing path traversal via ../ sequences to read arbitrary files. Additionally, error messages and included file contents are rendered without HTML escaping, leading to XSS even when escape=True. Affected functions: - Path resolution (lines 27-31) - block_error() in html.py (line 140) - render_html_include() (line 72) The Include plugin must be explicitly…

在 GitHub Advisory Database 阅读

2026/10/24 05:46，GitHub Advisory Database 发布了“Mistune: Path Traversal and XSS in Include directive”（类型：漏洞公告）。严重程度为“高危”（high）。相关技术：Python。CVE：CVE-2026-115355。