DEBIAN-CVE-2026-77037

Source
https://security-tracker.debian.org/tracker/CVE-2026-77037
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-77037.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-77037
Upstream
Published
2026-08-28T22:16:53Z
Modified
2026-11-02T18:00:45Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

multer is a middleware for handling multipart/form-data in Node.js. In version 2.2.0, when a disk-backed upload is aborted or truncated before the write stream finishes, multer's disk storage engine removes the visible file but does not close the underlying write file descriptor, leaving a deleted but still open descriptor. A remote attacker able to reach an upload route using the built-in disk storage can send repeated aborted or malformed multipart uploads, each one leaking a file descriptor and retaining disk blocks until the process exits, which can exhaust resources and cause a denial of service. The issue is fixed in multer 2.3.0, which closes the destination write stream on abnormal source termination and defers cleanup until the stream has closed. Upgrade to multer 2.3.0 to remediate.

References

Affected packages

Debian:14 / node-multer

Package

Name
node-multer
Purl
pkg:deb/debian/node-multer?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2.4.0+~cs3.2.0-1

Affected versions

2.*
2.2.0+~cs3.1.0-1
2.2.0+~cs3.1.0-2
2.2.0+~cs3.2.0-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Database specific

source
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-77037.json"