{"id":"CVE-2026-105219","revision":"0e32a73e0890468085e56086e5debec5","records":[{"revision":"0e32a73e0890468085e56086e5debec5","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-105219","aliases":[],"title":"Mammoth.js 1.3.0 before 1.12.3 ReDoS via Style Map Tokeniser","description":"Mammoth.js 1.3.0 before 1.12.3 contains a regular expression denial of service vulnerability in the style map tokeniser in lib/styles/parser/tokeniser.js due to overlapping regex alternatives. Attackers can supply a crafted .docx with an unterminated quoted string of repeated backslash escapes in mammoth/style-map to block the Node.js event loop.","state":0,"publishedAt":"2026-10-04T17:09:54.186+00:00","modifiedAt":"2026-10-05T14:55:01.763+00:00","affected":[{"ecosystem":"Vendor product","name":"mammoth.js","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"mwilliamson\",\n                    \"product\": \"mammoth.js\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"packageURL\": \"pkg:npm/mammoth\",\n                    \"versions\": [\n                        {\n                            \"version\": \"1.3.0\",\n                            \"lessThan\": \"1.12.3\",\n                            \"status\": \"affected\",\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:N/VI:N/VA:H/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:N/I:N/A:H","score":7.5,"severity":"HIGH"}],"references":["https://github.com/mwilliamson/mammoth.js/issues/487","https://github.com/mwilliamson/mammoth.js/commit/dc49225425c2c07de0a6dc3529f2386c82a032b4","https://github.com/mwilliamson/mammoth.js/blob/1.12.2/lib/styles/parser/tokeniser.js#L6-L30","https://github.com/mwilliamson/mammoth.js","https://www.vulncheck.com/advisories/mammoth-js-1.3.0-before-1.12.3-redos-via-style-map-tokeniser"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-105219","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-105219","identifiers":["CVE-2026-105219"]},"retained":false,"historicalAffected":[]}],"coverage":[]}