Duplicate Advisory: Mistune: Path Traversal and XSS in Include directive

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-h7ww-273w-6cm8. This link is maintained to preserve external references. Original Description Mistune before 3.3.0 contains a path traversal vulnerability in the Include directive that allows attackers to read...

DEBIAN-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 absolute paths. Attackers can submit markdown containing include directives referencing ../ sequences or absolute paths to embed sensiti...

DEBIAN-CVE-2026-115354

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...

DEBIAN-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 in include paths. Attackers can also inject HTML through unescaped error messages and included file contents to perform cross-site scripti...

CVE-2026-115354

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...

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 in include paths. Attackers can also inject HTML through unescaped error messages and included file contents to perform cross-site scripti...

DEBIAN-CVE-2026-115351

Mistune from 3.2.1 before 3.3.0 contains a CSS injection vulnerability that allows attackers controlling markdown input to inject arbitrary style declarations via the unvalidated figwidth option of the figure directive. Attackers can append declarations like background:url to the rendered figure...

DEBIAN-CVE-2026-115350

Mistune before 3.3.0 contains a cross-site scripting vulnerability in the Include directive that emits included .html, .xhtml, or .htm file content as raw blockhtml tokens. Attackers who can plant an HTML file readable by the renderer can reference it via an include directive, combined with path...

CVE-2026-115351

Mistune from 3.2.1 before 3.3.0 contains a CSS injection vulnerability that allows attackers controlling markdown input to inject arbitrary style declarations via the unvalidated figwidth option of the figure directive. Attackers can append declarations like background:url to the rendered figure...

CVE-2026-115350

Mistune before 3.3.0 contains a cross-site scripting vulnerability in the Include directive that emits included .html, .xhtml, or .htm file content as raw blockhtml tokens. Attackers who can plant an HTML file readable by the renderer can reference it via an include directive, combined with path...

CVE-2026-115354 Mistune before 3.3.0 Arbitrary Local File Read via Include Directive

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...

CVE-2026-115354

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...

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 in include paths. Attackers can also inject HTML through unescaped error messages and included file contents to perform cross-site scripti...

CVE-2026-115355

The Mistune markdown parser (versions prior to 3.3.0 ) is vulnerable to a path traversal flaw within the Include directive . Attackers can leverage ../ sequences in include paths to read arbitrary files on the system. Additionally, the parser fails to escape certain error messages and included fi...

CVE-2026-115354 Mistune before 3.3.0 Arbitrary Local File Read via Include Directive

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...

EUVD-2026-108423

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...

CVE-2026-115355 Mistune before 3.3.0 Path Traversal and XSS via Include Directive

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 scripti...

CVE-2026-115354

Mistune versions before 3.3.0 are vulnerable to a path traversal vulnerability within the opt-in Include directive . An attacker who can submit Markdown to be processed via Markdown.read() can provide relative or absolute paths to read arbitrary local files, such as /etc/passwd . Additionally, th...

CVE-2026-115355 Mistune before 3.3.0 Path Traversal and XSS via Include Directive

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 scripti...

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 in include paths. Attackers can also inject HTML through unescaped error messages and included file contents to perform cross-site scripti...