CVE-2025-47944CWE-248

Multer vulnerable to Denial of Service from maliciously crafted requests

High · published May 19, 2025

CVSS v3.1
7.5
EPSS
1%
Percentile
56.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00811 · 56.5th percentile
Weakness
CWE-248 · Uncaught Exception
Published
2025-05-19T19:20Z
EPSS history
Timeline
  • 19 MAY 19:20Z
    Multer vulnerable to Denial of Service from maliciously crafted requests
    cvelistv5