CVE-2026-88932
CVE-2026-88932 · multer vulnerable to Denial of Service via orphaned disk writes on aborted uploads
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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.
CVSS 5.3 · Medium · EPSS 0.5% · Fix available
- Published
- Updated
Stack: node