{"id":"CVE-2025-48997","summary":"Multer vulnerable to Denial of Service via unhandled exception","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 2.0.1 allows an attacker to trigger a Denial of Service (DoS) by sending an upload file request with an empty string field name. This request causes an unhandled exception, leading to a crash of the process. Users should upgrade to `2.0.1` to receive a patch. No known workarounds are available.","aliases":["GHSA-g5hg-p3ph-g8qg"],"modified":"2026-04-02T12:50:55.182011Z","published":"2025-06-03T18:21:59.527Z","related":["CGA-qmrp-5vvj-r7pr"],"database_specific":{"cwe_ids":["CWE-248"],"cna_assigner":"GitHub_M","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/48xxx/CVE-2025-48997.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/48xxx/CVE-2025-48997.json"},{"type":"ADVISORY","url":"https://github.com/expressjs/multer/security/advisories/GHSA-g5hg-p3ph-g8qg"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-48997"},{"type":"REPORT","url":"https://github.com/expressjs/multer/issues/1233"},{"type":"FIX","url":"https://github.com/expressjs/multer/commit/35a3272b611945155e046dd5cef11088587635e9"},{"type":"FIX","url":"https://github.com/expressjs/multer/pull/1256"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/expressjs/multer","events":[{"introduced":"59c7ef3bc5080de3203f0a0d5243a18bcf11175e"},{"fixed":"e259a7ee2141f5c89fd3d3e7d6825e706754340e"}]}],"versions":["v1.4.4-lts.1","v1.4.5-lts.1","v1.4.5-lts.2","v2.0.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-48997.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"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"}]}