Vulnerability Description
multer is a Node.js middleware for handling multipart/form-data uploads. In versions 2.2.0 through 2.3.0, when a request using disk storage is aborted mid-upload, file writes that complete after multer has already run its abort cleanup are not removed, so each aborted upload can leave an orphaned file on disk. A remote unauthenticated attacker can repeatedly start and abort uploads to accumulate orphaned files and exhaust disk space, causing a denial of service. The issue is fixed in multer 2.4.0, and users should upgrade to 2.4.0 or later.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://cna.openjsf.org/security-advisories.html
- https://github.com/expressjs/multer/security/advisories/GHSA-3pph-fpjx-jg34
FAQ
What is CVE-2026-88932?
CVE-2026-88932 is a vulnerability with a CVSS score of 5.3 (MEDIUM). multer is a Node.js middleware for handling multipart/form-data uploads. In versions 2.2.0 through 2.3.0, when a request using disk storage is aborted mid-upload, file writes that complete after multe...
How severe is CVE-2026-88932?
CVE-2026-88932 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-88932?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.