CVE-2026-2359

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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://cna.openjsf.org/security-advisories.html	Vendor Advisory
https://github.com/expressjs/multer/commit/cccf0fe0e64150c4f42ccf6654165c0d66b9adab	Patch
https://github.com/expressjs/multer/security/advisories/GHSA-v52c-386h-88mc	Patch Vendor Advisory
https://www.cve.org/CVERecord?id=CVE-2026-2359	VDB Entry
https://access.redhat.com/errata/RHSA-2026:6174
https://access.redhat.com/errata/RHSA-2026:6802
https://access.redhat.com/security/cve/CVE-2026-2359
https://bugzilla.redhat.com/show_bug.cgi?id=2443350
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-2359.json

Configurations

Configuration 1 (hide)

cpe:2.3:a:expressjs:multer:*:*:*:*:*:node.js:*:*

History

No history.

Information

Published : 2026-02-27 16:16

Updated : 2026-07-15 02:19

NVD link : CVE-2026-2359

Mitre link : CVE-2026-2359

CVE.ORG link : CVE-2026-2359

JSON object : View

Products Affected

expressjs

multer

CWE

CWE-772

Missing Release of Resource after Effective Lifetime

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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."}, {"lang": "es", "value": "Multer es un middleware de node.js para gestionar multipart/form-data. Una vulnerabilidad en Multer anterior a la versi\u00f3n 2.1.0 permite a un atacante activar una Denegaci\u00f3n de Servicio (DoS) al interrumpir la conexi\u00f3n durante la carga de archivos, lo que podr\u00eda causar el agotamiento de recursos. Los usuarios deben actualizar a la versi\u00f3n 2.1.0 para recibir un parche. No se conocen soluciones alternativas disponibles."}], "lastModified": "2026-07-15T02:19:30.117", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:expressjs:multer:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "782CDA46-E1F1-4E97-86C1-C9C0D58202DE", "versionEndExcluding": "2.1.0"}], "operator": "OR"}]}], "sourceIdentifier": "ce714d77-add3-4f53-aff5-83d477b104bb"}