CVE-2025-48997

HIGH

multer >=1.4.4-lts.1 <2.0.1 - Denial of Service via Empty String Field Name

Title source: llm
STIX 2.1

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 2.0.1 allows an attacker to trigger a Denial of Service (DoS) by sending an upload file request with an empty string field name. This request causes an unhandled exception, leading to a crash of the process. Users should upgrade to `2.0.1` to receive a patch. No known workarounds are available.

References (4)

Core 4

Scores

CVSS v4 8.7
EPSS 0.0037
EPSS Percentile 29.5%
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

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-248
Status published
Products (2)
expressjs/multer >= 1.4.4-lts.1, < 2.0.1
npm/multer 1.4.4-lts.1 - 2.0.1npm
Published Jun 03, 2025
Tracked Since Feb 18, 2026