GHSA-5528-5vmv-3xc2High

Multer Vulnerable to Denial of Service via Uncontrolled Recursion

Published
March 5, 2026
Last Modified
March 5, 2026

🔗 CVE IDs covered (1)

📋 Description

Impact

A vulnerability in Multer versions < 2.1.1 allows an attacker to trigger a Denial of Service (DoS) by sending malformed requests, potentially causing stack overflow.

Patches

Users should upgrade to 2.1.1

Workarounds

None

Resources

  • https://github.com/expressjs/multer/security/advisories/GHSA-5528-5vmv-3xc2
  • https://www.cve.org/CVERecord?id=CVE-2026-3520
  • https://github.com/expressjs/multer/commit/7e66481f8b2e6c54b982b34c152479e096ce2752
  • https://cna.openjsf.org/security-advisories.html

🎯 Affected products1

  • npm/multer:< 2.1.1

🔗 References (6)