HighGHSA-fjgf-rc76-4x9pCVE-2025-7338

Multer vulnerable to Denial of Service via unhandled exception from malformed request

Published 17 Jul 2025 · Updated 17 Jul 2025

Affected package

Affected
>=1.4.4-lts.1 <2.0.2
Fixed in
2.0.2
Update to the fixed version for your release line, for example:npm install multer@2.0.2

Details

Impact

A vulnerability in Multer versions >= 1.4.4-lts.1, < 2.0.2 allows an attacker to trigger a Denial of Service (DoS) by sending a malformed request. This request causes an unhandled exception, leading to a crash of the process.

Patches

Users should upgrade to 2.0.2

Workarounds

None

Is GHSA-fjgf-rc76-4x9p in any of your client repos?

Checking one package by hand is fine. Checking it across forty client projects is not. NPMscan reads the lockfiles in every GitHub repo you pick, finds each project with an affected multer, and gives you the command that fixes it.

References

Advisory data from OSV.dev (opens OSV.dev in a new tab), refreshed daily.