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 dropping connection during file upload, potentially causing resource exhaustion. Users should upgrade to version 2.1.0 to receive a patch. No known workarounds are available.

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-v52c-386h-88mc Multer vulnerable to Denial of Service via resource exhaustion
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Thu, 19 Mar 2026 17:30:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:expressjs:multer:*:*:*:*:*:node.js:*:*

Tue, 03 Mar 2026 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Important


Mon, 02 Mar 2026 12:15:00 +0000

Type Values Removed Values Added
First Time appeared Expressjs
Expressjs multer
Vendors & Products Expressjs
Expressjs multer

Fri, 27 Feb 2026 18:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 27 Feb 2026 16:00:00 +0000

Type Values Removed Values Added
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 dropping connection during file upload, potentially causing resource exhaustion. Users should upgrade to version 2.1.0 to receive a patch. No known workarounds are available.
Title Multer vulnerable to Denial of Service via resource exhaustion
Weaknesses CWE-772
References
Metrics cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: openjs

Published:

Updated: 2026-02-27T17:13:17.930Z

Reserved: 2026-02-11T17:10:23.973Z

Link: CVE-2026-2359

cve-icon Vulnrichment

Updated: 2026-02-27T17:13:13.703Z

cve-icon NVD

Status : Analyzed

Published: 2026-02-27T16:16:25.467

Modified: 2026-03-19T17:28:16.050

Link: CVE-2026-2359

cve-icon Redhat

Severity : Important

Publid Date: 2026-02-27T15:42:08Z

Links: CVE-2026-2359 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-03-02T12:07:09Z

Weaknesses