CVE-2026-3304

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.

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/739919097dde3921ec31b930e4b9025036fa74ee	Patch
https://github.com/expressjs/multer/security/advisories/GHSA-xf7r-hgr6-v32p	Patch Vendor Advisory
https://www.cve.org/CVERecord?id=CVE-2026-3304	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-2026-3304
https://bugzilla.redhat.com/show_bug.cgi?id=2443353
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-3304.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 02:20

NVD link : CVE-2026-3304

Mitre link : CVE-2026-3304

CVE.ORG link : CVE-2026-3304

JSON object : View

Products Affected

expressjs

multer

CWE

CWE-459

Incomplete Cleanup

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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 sending malformed requests, 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 manejar '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) enviando solicitudes malformadas, lo que podr\u00eda causar el agotamiento de recursos. Los usuarios deber\u00edan actualizar a la versi\u00f3n 2.1.0 para recibir un parche. No se conocen soluciones alternativas disponibles."}], "lastModified": "2026-07-15T02:20:59.280", "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"}