Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Expressjs | Multer | < 2.1.0 |
Related Weaknesses (CWE)
References
- https://cna.openjsf.org/security-advisories.htmlVendor Advisory
- https://github.com/expressjs/multer/commit/cccf0fe0e64150c4f42ccf6654165c0d66b9aPatch
- https://github.com/expressjs/multer/security/advisories/GHSA-v52c-386h-88mcPatchVendor Advisory
- https://www.cve.org/CVERecord?id=CVE-2026-2359VDB Entry
FAQ
What is CVE-2026-2359?
CVE-2026-2359 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 durin...
How severe is CVE-2026-2359?
CVE-2026-2359 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-2359?
Check the references section above for vendor advisories and patch information. Affected products include: Expressjs Multer.