# CVE-2026-88932: node-multer: multer is a Node.js middleware for handling multipart/form-data uploads

CVE-2026-88932 is fixed in node-multer on 1 platform by DEBIAN-CVE-2026-88932 (version 2.4.0+~cs3.2.0-1), released September 14, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-88932
- Priority: Routine
- CVSS: 5.3 (medium)
- EPSS: 0.0053
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 14, 2026

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | node-multer Debian 14 | 2.4.0+~cs3.2.0-1 | [DEBIAN-CVE-2026-88932](https://patchblox.com/security/data/fix/linux/debian-cve-2026-88932.md) | Sep 14, 2026 |

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Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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