HIGH

GHSA-v52c-386h-88mc

Multer vulnerable to Denial of Service via resource exhaustion

Details

### Impact

A vulnerability in Multer versions < 2.1.0 allows an attacker to trigger a Denial of Service (DoS) by dropping connection during file upload, 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: 0 Fixed in: 2.1.0

Fix npm install multer@2.1.0

References

https://github.com/expressjs/multer/security/advisories/GHSA-v52c-386h-88mc [WEB]
https://nvd.nist.gov/vuln/detail/CVE-2026-2359 [ADVISORY]
https://github.com/expressjs/multer/commit/cccf0fe0e64150c4f42ccf6654165c0d66b9adab [WEB]
https://cna.openjsf.org/security-advisories.html [WEB]
https://github.com/expressjs/multer [PACKAGE]
https://www.cve.org/CVERecord?id=CVE-2026-2359 [WEB]