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CVE-2026-3304

Published: Feb 27, 2026

Modified: Feb 27, 2026

PUBLISHED

Description

Multer is a node.js middleware for handling `multipart/form-data`. A vulnerability in Multer prior to version 2.1.0 allows an attacker to trigger a Denial of Service (DoS) by sending malformed requests, potentially causing resource exhaustion. Users should upgrade to version 2.1.0 to receive a patch. No known workarounds are available.

Vendor	Product	Versions
expressjs	multer	affected `0.0.0 - < 2.1.0`

Weaknesses (CWE)

References

https://github.com/expressjs/multer/security/advisories/GHSA-xf7r-hgr6-v32p

https://www.cve.org/CVERecord?id=CVE-2026-3304

https://github.com/expressjs/multer/commit/739919097dde3921ec31b930e4b9025036fa74ee

https://cna.openjsf.org/security-advisories.html

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