CVE-2026-5079

A flaw was found in Multer. A remote attacker can exploit this vulnerability by sending a single HTTP request with crafted multipart form data containing deeply nested field names. This can force the allocation of deeply nested object structures, consuming excessive CPU and memory resources. The...

CVE-2026-5079

Impact: multer versions 1.0.0 through 2.1.1 and 3.0.0-alpha.1 are vulnerable to a Denial of Service via deeply nested field names in multipart form data. The append-field dependency parses bracket notation in field names with no limit on nesting depth, allowing an attacker to force allocation of...

CVE-2026-5079

The CVE-2026-5079 issue affects the Multer library (versions 1.0.0–2.1.1 and 3.0.0-alpha.1). The vulnerability arises from the append-field dependency parsing bracket notation in field names with no limit on nesting depth, which can cause the allocation of deeply nested object structures and cons...