{"id":"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.","aliases":["GHSA-4pg4-qvpc-4q3h"],"modified":"2026-08-12T03:30:42.114229054Z","published":"2025-05-19T19:20:45.401Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/47xxx/CVE-2025-47944.json","cna_assigner":"GitHub_M","cwe_ids":["CWE-248"]},"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"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/expressjs/multer","events":[{"introduced":"59c7ef3bc5080de3203f0a0d5243a18bcf11175e"},{"fixed":"2c8505f207d923dd8de13a9f93a4563e59933665"}],"database_specific":{"extracted_events":[{"introduced":"1.4.4-lts.1"},{"fixed":"2.0.0"}],"source":["AFFECTED_FIELD","REFERENCES"]}}],"versions":["v1.4.5-lts.2","v1.4.5-lts.1","v1.4.4-lts.1"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-47944.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}