{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-105219 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-105219 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-105219 is a high-severity denial of service vulnerability in mwilliamson mammoth.js, published on 4 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-105219 and fix it if it is affected.\n\nWhat it is: CVE-2026-105219 is a high-severity denial of service vulnerability in mwilliamson mammoth.js, published on 4 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-105219 in the wild and no public exploit code.\n\nAffected product: mwilliamson mammoth.js. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-105219/ (Markdown: https://insights.sbomify.com/CVE-2026-105219/index.md)","id":"CVE-2026-105219","markdown":"https://insights.sbomify.com/CVE-2026-105219/index.md","name":"CVE-2026-105219","record":{"aliases":["GHSA-fp33-4hh4-xjj5"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"JavaScript document library","requires_auth":"none","summary":"Attackers can cause a denial of service in applications using Mammoth.js by supplying a crafted .docx file that triggers a regular expression denial of service.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":8.7,"severity":"high","source":"cna","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","version":"4.0"},"cwes":[{"id":"CWE-1333","name":"Inefficient Regular Expression Complexity"}],"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.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"Mammoth.js 1.3.0 before 1.12.3 ReDoS via Style Map Tokeniser","id":"CVE-2026-105219","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":0,"n_references":5,"next":{"headline":"Twine 2 Desktop through 2.12.0 Arbitrary Code Execution via Imported Story Files","id":"CVE-2026-105220"},"packages":[],"prev":{"headline":"gopay before 1.5.119 Disabled TLS Certificate Verification in xhttp Client","id":"CVE-2026-105218"},"products":["mammoth.js"],"published":"2026-10-04","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-05","vendors":["mwilliamson"]},"summary":"Attackers can cause a denial of service in applications using Mammoth.js by supplying a crafted .docx file that triggers a regular expression denial of service.","url":"https://insights.sbomify.com/CVE-2026-105219/"}