PT-2026-22345 · Multer · Multer

Nawin23 · CVE-2026-2359 · Published 2026-02-27 · Updated 2026-07-09

Positive Technologies (AI Summary)

CVSS v4.0

8.7

High

Base vector

AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Name of the Vulnerable Software and Affected Versions Multer versions prior to 2.1.0

Description A flaw exists in Multer, a node.js middleware used for handling multipart/form-data. An attacker can cause a Denial of Service (DoS) by terminating the connection during a file upload, which may lead to resource exhaustion.

Recommendations Upgrade to version 2.1.0 to address the issue.

Exploit

Fix

DoS

Missing Release of Resource after Effective Lifetime

Weakness Enumeration

CWE-772

Related Identifiers

CVE-2026-2359

GHSA-V52C-386H-88MC

Affected Products

Multer

References · 18

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/2xxx/CVE-2026-2359.json · Exploit
• https://github.com/expressjs/multer/commit/cccf0fe0e64150c4f42ccf6654165c0d66b9adab · Patch
• https://github.com/expressjs/multer/security/advisories/GHSA-v52c-386h-88mc · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2026:6174 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-2359 · Security Note
• https://access.redhat.com/errata/RHSA-2026:6802 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2026-2359 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-2359 · Security Note
• https://osv.dev/vulnerability/ROOT-APP-NPM-CVE-2026-2359 · Vendor Advisory
• https://cna.openjsf.org/security-advisories.html · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-v52c-386h-88mc · Vendor Advisory
• https://github.com/expressjs/multer · Note
• https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-2359.json · Note
• https://twitter.com/kom_256/status/2027408384450871699 · Twitter Post
• https://twitter.com/CVEnew/status/2027466603483602992 · Twitter Post