CVE-2026-3304 in expressjs multerinfo

Summary

Multer is a node.js middleware for handling `multipart/form-data`. A vulnerability in Multer prior to version 2.1.0 allows an attacker to trigger a Denial of Service (DoS) by sending malformed requests, potentially causing resource exhaustion. Users should upgrade to version 2.1.0 to receive a patch. No known workarounds are available.

Responsible

openjs

Reservation

02/26/2026

Disclosure

02/27/2026

Entries

VulDB provides additional information and datapoints for this CVE:

ID	Vulnerability	CWE	Exp	Cou	CVE
348178	expressjs multer cleanup	459	Not defined	Official fix	CVE-2026-3304

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