{"id":"CVE-2026-115355","revision":"16e5acdec7a248638e77fa6a4f656d64","records":[{"revision":"16e5acdec7a248638e77fa6a4f656d64","observedAt":"2026-10-29T15:12:12.364+00:00","statement":{"source":"cve-program","id":"CVE-2026-115355","aliases":[],"title":"Mistune before 3.3.0 Path Traversal and XSS via Include Directive","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.","state":0,"publishedAt":"2026-10-22T19:13:31.904+00:00","modifiedAt":"2026-10-29T13:48:43.278+00:00","affected":[{"ecosystem":"Vendor product","name":"mistune","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"lepture\",\n                    \"product\": \"mistune\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"packageURL\": \"pkg:pypi/mistune\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\",\n                            \"lessThan\": \"3.3.0\"\n                        },\n                        {\n                            \"version\": \"3.3.0\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","score":8.7,"severity":"HIGH"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","score":7.5,"severity":"HIGH"}],"references":["https://github.com/lepture/mistune/security/advisories/GHSA-h7ww-273w-6cm8","https://www.vulncheck.com/advisories/mistune-before-3.3.0-path-traversal-and-xss-via-include-directive"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-115355","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-115355","identifiers":["CVE-2026-115355"]},"retained":false,"historicalAffected":[]}],"coverage":[]}