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NVD Vulnerability Details :
CVE-2026-3304
Modified
More InfoOfficial Page
Source-ce714d77-add3-4f53-aff5-83d477b104bb
View Known Exploited Vulnerability (KEV) details
Published At-27 Feb, 2026 | 16:16
Updated At-15 Jul, 2026 | 02:20

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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary4.08.7HIGH
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Primary3.17.5HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Secondary3.17.5HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
N/A
Type: Secondary
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Type: Primary
Version: 3.1
Base score: 7.5
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Type: Secondary
Version: 3.1
Base score: 7.5
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Type: N/A
Version:
Base score:
Base severity: N/A
Vector:
CPE Matches
Express (OpenJS Foundation)
expressjs
>>multer>>Versions before 2.1.0(exclusive)
cpe:2.3:a:expressjs:multer:*:*:*:*:*:node.js:*:*
Weaknesses
CWE IDTypeSource
CWE-459Secondaryce714d77-add3-4f53-aff5-83d477b104bb
CWE-459Secondary0b0ca135-0b70-47e7-9f44-1890c2a1c46c
CWE ID: CWE-459
Type: Secondary
Source: ce714d77-add3-4f53-aff5-83d477b104bb
CWE ID: CWE-459
Type: Secondary
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://cna.openjsf.org/security-advisories.htmlce714d77-add3-4f53-aff5-83d477b104bb
Vendor Advisory
https://github.com/expressjs/multer/commit/739919097dde3921ec31b930e4b9025036fa74eece714d77-add3-4f53-aff5-83d477b104bb
Patch
https://github.com/expressjs/multer/security/advisories/GHSA-xf7r-hgr6-v32pce714d77-add3-4f53-aff5-83d477b104bb
Patch
Vendor Advisory
https://www.cve.org/CVERecord?id=CVE-2026-3304ce714d77-add3-4f53-aff5-83d477b104bb
VDB Entry
https://access.redhat.com/errata/RHSA-2026:61740b0ca135-0b70-47e7-9f44-1890c2a1c46c
N/A
https://access.redhat.com/errata/RHSA-2026:68020b0ca135-0b70-47e7-9f44-1890c2a1c46c
N/A
https://access.redhat.com/security/cve/CVE-2026-33040b0ca135-0b70-47e7-9f44-1890c2a1c46c
N/A
https://bugzilla.redhat.com/show_bug.cgi?id=24433530b0ca135-0b70-47e7-9f44-1890c2a1c46c
N/A
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-3304.json0b0ca135-0b70-47e7-9f44-1890c2a1c46c
N/A
Hyperlink: https://cna.openjsf.org/security-advisories.html
Source: ce714d77-add3-4f53-aff5-83d477b104bb
Resource:
Vendor Advisory
Hyperlink: https://github.com/expressjs/multer/commit/739919097dde3921ec31b930e4b9025036fa74ee
Source: ce714d77-add3-4f53-aff5-83d477b104bb
Resource:
Patch
Hyperlink: https://github.com/expressjs/multer/security/advisories/GHSA-xf7r-hgr6-v32p
Source: ce714d77-add3-4f53-aff5-83d477b104bb
Resource:
Patch
Vendor Advisory
Hyperlink: https://www.cve.org/CVERecord?id=CVE-2026-3304
Source: ce714d77-add3-4f53-aff5-83d477b104bb
Resource:
VDB Entry
Hyperlink: https://access.redhat.com/errata/RHSA-2026:6174
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Resource: N/A
Hyperlink: https://access.redhat.com/errata/RHSA-2026:6802
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Resource: N/A
Hyperlink: https://access.redhat.com/security/cve/CVE-2026-3304
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Resource: N/A
Hyperlink: https://bugzilla.redhat.com/show_bug.cgi?id=2443353
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Resource: N/A
Hyperlink: https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-3304.json
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Resource: N/A
Change History
0Changes found
Details not found