Description
Multer is a node.js middleware for handling `multipart/form-data`. A vulnerability in Multer prior to version 2.1.1 allows an attacker to trigger a Denial of Service (DoS) by sending malformed requests, potentially causing stack overflow. Users should upgrade to version 2.1.1 to receive a patch. No known workarounds are available.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| expressjs | multer | < 2.1.1 | 2.1.1 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| npm | multer | < 2.1.1 | 2.1.1 | GHSA-5528-5vmv-3xc2 |
Advisories 2
- WID-SEC-2026-3046 IBM Concert: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 10, 2026
- WID-SEC-2026-0903 IBM App Connect Enterprise: Mehrere Schwachstellen ermöglichen Denial of Service BSI CERT-Bund (WID) · Apr 7, 2026