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CVE Vulnerability Details :
CVE-2026-3304
PUBLISHED
More InfoOfficial Page
Assigner-openjs
Assigner Org ID-ce714d77-add3-4f53-aff5-83d477b104bb
View Known Exploited Vulnerability (KEV) details
Published At-27 Feb, 2026 | 15:44
Updated At-27 Feb, 2026 | 17:12
Rejected At-
▼CVE Numbering Authority (CNA)
Multer vulnerable to Denial of Service via incomplete cleanup

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.

Affected Products
Vendor
Express (OpenJS Foundation)expressjs
Product
multer
Default Status
unaffected
Versions
Affected
  • From 0.0.0 before 2.1.0 (semver)
Problem Types
TypeCWE IDDescription
CWECWE-459CWE-459
Type: CWE
CWE ID: CWE-459
Description: CWE-459
Metrics
VersionBase scoreBase severityVector
4.08.7HIGH
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
Version: 4.0
Base score: 8.7
Base severity: HIGH
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
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/expressjs/multer/security/advisories/GHSA-xf7r-hgr6-v32p
N/A
https://www.cve.org/CVERecord?id=CVE-2026-3304
N/A
https://github.com/expressjs/multer/commit/739919097dde3921ec31b930e4b9025036fa74ee
N/A
https://cna.openjsf.org/security-advisories.html
N/A
Hyperlink: https://github.com/expressjs/multer/security/advisories/GHSA-xf7r-hgr6-v32p
Resource: N/A
Hyperlink: https://www.cve.org/CVERecord?id=CVE-2026-3304
Resource: N/A
Hyperlink: https://github.com/expressjs/multer/commit/739919097dde3921ec31b930e4b9025036fa74ee
Resource: N/A
Hyperlink: https://cna.openjsf.org/security-advisories.html
Resource: N/A
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Details not found