CVE-2026-2359

EPSS 0.02%

Multer vulnerable to Denial of Service via resource exhaustion

Published: 3/1/2026Modified: 3/6/2026

Also known as:GHSA-v52c-386h-88mcCGA-gff5-7x3q-xp8v

Description

### Impact A vulnerability in Multer versions < 2.1.0 allows an attacker to trigger a Denial of Service (DoS) by dropping connection during file upload, potentially causing resource exhaustion. ### Patches Users should upgrade to `2.1.0` ### Workarounds None

Affected packages (1)

npm/multerfrom 0, < 2.1.0

CVSS scores

Source	Version	Severity	Vector
osv	CVSS 4.0	—	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

References (6)

ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2026-2359
PATCHhttps://github.com/expressjs/multer
WEBhttps://cna.openjsf.org/security-advisories.html
WEBhttps://github.com/expressjs/multer/commit/cccf0fe0e64150c4f42ccf6654165c0d66b9adab
WEBhttps://github.com/expressjs/multer/security/advisories/GHSA-v52c-386h-88mc
WEBhttps://www.cve.org/CVERecord?id=CVE-2026-2359