---
title: "GHSA-fjgf-rc76-4x9p: Multer vulnerable to Denial of Service via unhandled exception from malformed request"
description: "High severity. Multer vulnerable to Denial of Service via unhandled exception from malformed request. Affects multer; fixed in 2.0.2."
url: https://inlinr.com/advisories/GHSA-fjgf-rc76-4x9p
lang: en
---

[Packages](https://inlinr.com/packages) / [multer](https://inlinr.com/packages/multer) / [Security](https://inlinr.com/packages/multer/security)

High Vulnerability GHSA-fjgf-rc76-4x9p CVE-2025-7338 Published 17 Jul 2025

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

Your version 

Affected releases · [multer](https://inlinr.com/packages/multer)

- 2.x 2.0.0 – 2.0.1 Fixed in 2.0.2
- 1.x 1.4.4 No fix on this line yet

On 2.x, the newest line:

```
npm install multer@2.0.2
```

Every release on a timeline

2.x 

1. Affected

2.0.0 – 2.0.1  
2 releases
2. Fixed

2.0.2 – 2.5.0  
7 releases, latest

1.x 

1. Not affected

1.0.0 – 1.4.3  
16 releases
2. Affected

1.4.4  
1 release

41 stable releases of multer, oldest to newest, one row per major.

## What happens

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

## How it is exploited

Exploitable over the network, with no account and no action from a user.

- **Confidentiality**: none
- **Integrity**: none
- **Availability**: high

CVSS:3.1/​AV:N/​AC:L/​PR:N/​UI:N/​S:U/​C:N/​I:N/​A:H

## References

- [Reference](https://github.com/expressjs/multer/security/advisories/GHSA-fjgf-rc76-4x9p "https://github.com/expressjs/multer/security/advisories/GHSA-fjgf-rc76-4x9p")  
github.com/expressjs/multer/security/advisories…
- [NVD](https://nvd.nist.gov/vuln/detail/CVE-2025-7338 "https://nvd.nist.gov/vuln/detail/CVE-2025-7338")  
nvd.nist.gov/vuln/detail/CVE-2025-7338
- [Fix commit](https://github.com/expressjs/multer/commit/adfeaf669f0e7fe953eab191a762164a452d143b "https://github.com/expressjs/multer/commit/adfeaf669f0e7fe953eab191a762164a452d143b")  
adfeaf6
- [Reference](https://cna.openjsf.org/security-advisories.html "https://cna.openjsf.org/security-advisories.html")  
cna.openjsf.org/security-advisories.html
- [Package](https://github.com/expressjs/multer "https://github.com/expressjs/multer")  
github.com/expressjs/multer