PT-2026-121533

CVE-2026-115353

Published

2026-10-22

Updated

2026-11-03

Description by

CVSS 4.0

9.2

Critical

MetricsAV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Name of the Vulnerable Software and Affected Versions Mistune versions prior to 3.3.0

Description A path traversal issue exists in the RST include directive. This allows attackers to read arbitrary files by providing relative or absolute paths. By submitting markdown containing include directives with ../ sequences or absolute paths, an attacker can embed sensitive files, such as credentials or environment data, into the rendered HTML.

Recommendations Update to version 3.3.0 or later.

Exploitability

Exploit

Fix

Impacts

Researchers

Offset

Vendors

Affected products

Weakness enumeration

CWE-22: Improper Limitation of a Pathname to a Restricted Directory (\'Path Traversal\')

Related identifiers