{"id":"CVE-2025-47944","aliases":["GHSA-4pg4-qvpc-4q3h"],"url":"https://o3.security/vulnerability/CVE-2025-47944","summary":"Multer vulnerable to Denial of Service from maliciously crafted requests","details":"Multer is a node.js middleware for handling `multipart/form-data`. A vulnerability that is present starting in version 1.4.4-lts.1 and prior to version 2.0.0 allows an attacker to trigger a Denial of Service (DoS) by sending a malformed multi-part upload request. This request causes an unhandled exception, leading to a crash of the process. Users should upgrade to version 2.0.0 to receive a patch. No known workarounds are available.","published":"2025-05-19T19:20:45.401Z","modified":"2026-07-16T03:47:49.193859290Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"multer","fixedVersion":"2.0.0"}],"fix":{"url":"https://github.com/expressjs/multer/commit/2c8505f207d923dd8de13a9f93a4563e59933665","label":"expressjs/multer@2c8505f"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/47xxx/CVE-2025-47944.json"},{"type":"ADVISORY","url":"https://github.com/expressjs/multer/security/advisories/GHSA-4pg4-qvpc-4q3h"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-47944"},{"type":"REPORT","url":"https://github.com/expressjs/multer/issues/1176"},{"type":"FIX","url":"https://github.com/expressjs/multer/commit/2c8505f207d923dd8de13a9f93a4563e59933665"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-16T03:47:49.193859290Z"}}