{"id":"GHSA-g5hg-p3ph-g8qg","summary":"Multer vulnerable to Denial of Service via unhandled exception","details":"### Impact\n\nA vulnerability in Multer versions \u003e=1.4.4-lts.1, \u003c2.0.1 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.\n\n### Patches\n\nUsers should upgrade to `2.0.1`\n\n### Workarounds\n\nNone\n\n### References\n\nhttps://github.com/expressjs/multer/commit/35a3272b611945155e046dd5cef11088587635e9\nhttps://github.com/expressjs/multer/issues/1233\nhttps://github.com/expressjs/multer/pull/1256","aliases":["CVE-2025-48997"],"modified":"2026-09-10T03:50:25.185745509Z","published":"2025-06-05T01:09:35Z","database_specific":{"github_reviewed":true,"github_reviewed_at":"2025-06-05T01:09:35Z","nvd_published_at":"2025-06-03T19:15:39Z","cwe_ids":["CWE-248"],"severity":"HIGH"},"references":[{"type":"WEB","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":"WEB","url":"https://github.com/expressjs/multer/issues/1233"},{"type":"WEB","url":"https://github.com/expressjs/multer/pull/1256"},{"type":"WEB","url":"https://github.com/expressjs/multer/commit/35a3272b611945155e046dd5cef11088587635e9"},{"type":"PACKAGE","url":"https://github.com/expressjs/multer"}],"affected":[{"package":{"name":"multer","ecosystem":"npm","purl":"pkg:npm/multer"},"ranges":[{"type":"SEMVER","events":[{"introduced":"1.4.4-lts.1"},{"fixed":"2.0.1"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/06/GHSA-g5hg-p3ph-g8qg/GHSA-g5hg-p3ph-g8qg.json"}}],"schema_version":"1.9.0","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"}]}