CVE-2026-2359
Multer vulnerable to Denial of Service via resource exhaustion
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
Multer is a node.js middleware for handling `multipart/form-data`. A vulnerability in Multer prior to version 2.1.0 allows an attacker to trigger a Denial of Service (DoS) by dropping connection during file upload, potentially causing resource exhaustion. Users should upgrade to version 2.1.0 to receive a patch. No known workarounds are available.
| CWE | CWE-772 |
| Vendor | expressjs |
| Product | multer |
| Published | Feb 27, 2026 |
| Last Updated | Jul 15, 2026 |
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Affected Versions
expressjs / multer
0.0.0 < 2.1.0
References
github.com: https://github.com/expressjs/multer/security/advisories/GHSA-v52c-386h-88mc cve.org: https://www.cve.org/CVERecord?id=CVE-2026-2359 github.com: https://github.com/expressjs/multer/commit/cccf0fe0e64150c4f42ccf6654165c0d66b9adab cna.openjsf.org: https://cna.openjsf.org/security-advisories.html access.redhat.com: https://access.redhat.com/security/cve/CVE-2026-2359 bugzilla.redhat.com: https://bugzilla.redhat.com/show_bug.cgi?id=2443350 security.access.redhat.com: https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-2359.json access.redhat.com: https://access.redhat.com/errata/RHSA-2026:6174 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:6802