{"id":"CVE-2026-88932","revision":"fe2643cd460841659d633712b71b9eee","records":[{"revision":"fe2643cd460841659d633712b71b9eee","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-88932","aliases":[],"title":"multer vulnerable to Denial of Service via orphaned disk writes on aborted uploads","description":"multer is a Node.js middleware for handling multipart/form-data uploads. In versions 2.2.0 through 2.3.0, when a request using disk storage is aborted mid-upload, file writes that complete after multer has already run its abort cleanup are not removed, so each aborted upload can leave an orphaned file on disk. A remote unauthenticated attacker can repeatedly start and abort uploads to accumulate orphaned files and exhaust disk space, causing a denial of service. The issue is fixed in multer 2.4.0, and users should upgrade to 2.4.0 or later.","state":0,"publishedAt":"2026-09-14T08:46:12.896+00:00","modifiedAt":"2026-09-14T10:29:12.674+00:00","affected":[{"ecosystem":"Vendor product","name":"multer","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"multer\",\n                    \"product\": \"multer\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"versions\": [\n                        {\n                            \"versionType\": \"semver\",\n                            \"status\": \"affected\",\n                            \"version\": \"2.2.0\",\n                            \"lessThan\": \"2.4.0\"\n                        },\n                        {\n                            \"versionType\": \"semver\",\n                            \"status\": \"unaffected\",\n                            \"version\": \"2.4.0\"\n                        }\n                    ],\n                    \"packageURL\": \"pkg:npm/multer\"\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","score":5.3,"severity":"MEDIUM"}],"references":["https://github.com/expressjs/multer/security/advisories/GHSA-3pph-fpjx-jg34","https://cna.openjsf.org/security-advisories.html"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-88932","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-88932","identifiers":["CVE-2026-88932"]},"retained":false,"historicalAffected":[]}],"coverage":[]}