{"schema":"threatline.record/2","record":{"id":"CVE-2026-105219","aliases":[],"summary":"Mammoth.js 1.3.0 before 1.12.3 ReDoS via Style Map Tokeniser","details":"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.","categories":["Unclassified"],"product":"mammoth.js","vendor":"mwilliamson","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-105219","source_modified_at":"2026-10-05T14:55:01.763Z","fetched_at":"2026-10-23T18:52:38.922436Z","product":"mammoth.js","vendor":"mwilliamson","versions":[{"version":"1.3.0","lessThan":"1.12.3","status":"affected","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-105219","source_modified_at":"2026-10-05T14:55:01.763Z","fetched_at":"2026-10-23T18:52:38.922436Z","package":{"name":"mammoth.js","ecosystem":null},"version":"1.12.3","basis":"first unaffected version stated in the CVE record"}],"cvss":8.7,"severity":"High","kev":{"listed":false},"epss":{"probability":0.00358,"percentile":0.28334,"score_date":"2026-10-23"},"published_at":"2026-10-04T17:09:54.186Z","modified_at":"2026-10-05T14:55:01.763Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-105219","fetched_at":"2026-10-23T18:52:38.922436Z","source_modified_at":"2026-10-05T14:55:01.763Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-105219","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/mwilliamson/mammoth.js/issues/487","tags":["issue-tracking"]},{"source":"CVE List","url":"https://github.com/mwilliamson/mammoth.js/commit/dc49225425c2c07de0a6dc3529f2386c82a032b4","tags":["patch"]},{"source":"CVE List","url":"https://github.com/mwilliamson/mammoth.js/blob/1.12.2/lib/styles/parser/tokeniser.js#L6-L30","tags":["technical-description"]},{"source":"CVE List","url":"https://github.com/mwilliamson/mammoth.js","tags":["product"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/mammoth-js-1.3.0-before-1.12.3-redos-via-style-map-tokeniser","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"yes","technical_impact":"partial","assessed_at":"2026-10-05T13:07:56.744324Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-05T14:55:01.763Z","content_hash":"e26ce302ee2a7e11dd71ed216ca90884e7b45004d092c745fbe86909a643a394"}}