HIGHCVE-2026-2359Published Modified CNA openjs
CVE-2026-2359: Multer vulnerable to Denial of Service via resource exhaustion
Multer is a node.js middleware for handling `multipart/form-data`. A vulnerability in Multer prior to version 2.1.0 allows an attacker to trigger a Denial of Service (DoS) by dropping connection during file upload, potentially causing resource exhaustion. Users should upgrade to version 2.1.0 to receive a patch. No known workarounds are available.
Metrics
- CVSS v4.0
- 8.7
- Severity
- HIGH
- Fixed in
- 2.1.0
- Affected Products
- 1
Fix available
2.1.0
Affected packages
- expressjs / multer< 2.1.0 (from 0.0.0)
CVSS Vector
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