#VU111105 Memory leak in multer - CVE-2025-47935

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Main Vulnerability Database Vulnerabilities #VU111105

#VU111105 Memory leak in multer - CVE-2025-47935

Published: June 12, 2025


Vulnerability identifier: #VU111105
Vulnerability risk: High
CVSSv4.0: 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:U/U:Amber
CVE-ID: CVE-2025-47935
CWE-ID: CWE-401
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
multer
Software vendor:
Express.js

Description

The vulnerability allows a remote attacker to perform DoS attack on the target system.

The vulnerability exists due to improper stream handling. When the HTTP request stream emits an error, the internal `busboy` stream is not closed, violating Node.js stream safety guidance. A remote attacker can force the application to leak memory and perform denial of service attack.


Remediation

Install updates from vendor's website.

External links