HIGH

GHSA-xf7r-hgr6-v32p

Multer vulnerable to Denial of Service via incomplete cleanup

Quick fix

GHSA-xf7r-hgr6-v32p — multer: upgrade to the fixed version with the command below.

npm install multer@2.1.0

Details

### Impact

A vulnerability in Multer versions < 2.1.0 allows an attacker to trigger a Denial of Service (DoS) by sending malformed requests, potentially causing resource exhaustion.

### Patches

Users should upgrade to `2.1.0`

### Workarounds

None

Are you affected?

Enter the version of the package you're using.

Affected packages

npm/multer

Introduced in: 0Fixed in: 2.1.0

Fixnpm install multer@2.1.0

References

https://github.com/expressjs/multer/security/advisories/GHSA-xf7r-hgr6-v32p[WEB]
https://nvd.nist.gov/vuln/detail/CVE-2026-3304[ADVISORY]
https://github.com/expressjs/multer/commit/739919097dde3921ec31b930e4b9025036fa74ee[WEB]
https://cna.openjsf.org/security-advisories.html[WEB]
https://github.com/expressjs/multer[PACKAGE]
https://www.cve.org/CVERecord?id=CVE-2026-3304[WEB]