All vulnerabilities
CVE-2025-47944
Multer vulnerable to Denial of Service from maliciously crafted requests
Description
Impact
A vulnerability in Multer versions >=1.4.4-lts.1 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.
Patches
Users should upgrade to 2.0.0
Workarounds
None
References
Patch Available
Fix available through Seal Security.
No upgrade required, protect your application instantly.
Fix without upgrading
Score
7.5
Severity
High
Ecosystem
JavaScript
Publish Date
May 19, 2025
Modified Date
February 3, 2026
Score Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Versions

