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CVE-2026-3520

HIGH CVSS: 7.5 Published: 2026-03-04 Modified: 2026-07-15

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 Platforms

Expressjs Multer

Weakness Type

CWE-674, CWE-770

References