CVE-2026-3520
Multer is a node.js middleware for handling .
Published Mar 4, 2026 · updated Jul 15, 2026 · expressjs multer
Multer is a node.js middleware for handling . A vulnerability in Multer prior to version 2.1.1 allows an attacker to trigger a Denial of Service (DoS) by sending malformed requests, potentially causing stack overflow. Users should upgrade to version 2.1.1 to receive a patch. No known workarounds are available.
Code
The project this record applies to. Exploit listings stay in References.
Timeline
Detection, updates, and resolution for this record.
Mar 4, 2026 · NIST NVD
Detected
Multer is a node.js middleware for handling . A vulnerability in Multer prior to version 2.1.1 allows an attacker to trigger a Denial of Service (DoS) by sending malformed requests, potentially causing stack overflow. Users should upgrade to version 2.1.1 to receive a patch. No known workarounds are available.
Jul 15, 2026 · NIST NVD
Updated
Multer is a node.js middleware for handling . A vulnerability in Multer prior to version 2.1.1 allows an attacker to trigger a Denial of Service (DoS) by sending malformed requests, potentially causing stack overflow. Users should upgrade to version 2.1.1 to receive a patch. No known workarounds are available.
Affected
- cpe expressjs/multerversion unspecified
Sources
- CVE.orgVulnerability recordCVE-2026-3520
Official CVE identifier
cve.org - NIST NVDVulnerability recordCVE-2026-3520
Multer is a node.js middleware for handling . A vulnerability in Multer prior to version 2.1.1 allows an attacker to trigger a Denial of Service (DoS) by sending malformed requests, potentially causing stack overflow. Users should upgrade to version 2.1.1 to
nvd.nist.gov