CVE-2025-47944 - CVE House
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Status published High CVE-2025-47944

Multer vulnerable to Denial of Service from maliciously crafted requests

Vulnerability Description

Multer is a node.js middleware for handling `multipart/form-data`. A vulnerability that is present starting in version 1.4.4-lts.1 and prior to version 2.0.0 allows an attacker to trigger a Denial of Service (DoS) by sending a malformed multi-part upload request. This request causes an unhandled exception, leading to a crash of the process. Users should upgrade to version 2.0.0 to receive a patch. No known workarounds are available.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Affected Software

multer
Vulnerable Versions:
>=1.4.4-lts.1, <2.0.0

Timeline

Official Publish: May 19th, 2025
Last Modified: May 20th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weaknesses (CWE)

CWE-248

MITRE ATT&CK TTPs

T1190 Exploit Public-Facing Application
Initial Access
T1203 Exploitation for Client Execution
Execution
T1213 Data from Information Repositories
Collection
T1499.003 Application Exhaustion Flood
Impact