PT-2026-22346 · Npm · Multer

Ethankim88 · Published 2026-02-27 · Updated 2026-03-09 · CVE-2026-3304

Positive Technologies (AI Summary)

CVSS v4.0

8.7

High

Base vector

AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Name of the Vulnerable Software and Affected Versions Multer versions prior to 2.1.0

Description A flaw exists in Multer, a node.js middleware used for processing multipart/form-data. This issue can be exploited to initiate a Denial of Service (DoS) attack by submitting specially crafted requests, which may lead to resource exhaustion.

Recommendations Upgrade to version 2.1.0 to address the issue.

Fix

DoS

Weakness Enumeration

CWE-459

Related Identifiers

CVE-2026-3304

GHSA-XF7R-HGR6-V32P

Affected Products

Multer

References · 11

• https://github.com/expressjs/multer/commit/739919097dde3921ec31b930e4b9025036fa74ee · Patch
• https://github.com/expressjs/multer/security/advisories/GHSA-xf7r-hgr6-v32p · Vendor Advisory
• https://cna.openjsf.org/security-advisories.html · Vendor Advisory
• https://osv.dev/vulnerability/ROOT-APP-NPM-CVE-2026-3304 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-3304 · Security Note
• https://osv.dev/vulnerability/CVE-2026-3304 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-3304 · Security Note
• https://osv.dev/vulnerability/GHSA-xf7r-hgr6-v32p · Vendor Advisory
• https://github.com/expressjs/multer · Note
• https://twitter.com/kom_256/status/2027408825884529081 · Twitter Post
• https://twitter.com/CVEnew/status/2027466602653122671 · Twitter Post