CVE-2025-48997 Information

Description

Multer is a node.js middleware for handling multipart/form-data. A vulnerability that is present starting in version 1.4.4-lts.1 and prior to version 2.0.1 allows an attacker to trigger a Denial of Service (DoS) by sending an upload file request with an empty string field name. This request causes an unhandled exception leading to a crash of the process. Users should upgrade to 2.0.1 to receive a patch. No known workarounds are available.

Reference

https://github.com/expressjs/multer/commit/35a3272b611945155e046dd5cef11088587635e9 https://github.com/expressjs/multer/issues/1233 https://github.com/expressjs/multer/pull/1256 https://github.com/expressjs/multer/security/advisories/GHSA-g5hg-p3ph-g8qg