CVE-2025-7338
Multer vulnerable to Denial of Service via unhandled exception from malformed request
At a glance
- Severity
- HIGH 7.5
- EPSS
- EPSS 0.81 % · percentile 57 (2026-10-27)
- State
- PUBLISHED
- Published
- Updated
- Assigner
- openjs
- NVD status
- Deferred
Description
Multer is a node.js middleware for handling `multipart/form-data`. A vulnerability that is present starting in version 1.4.4-lts.1 and prior to version 2.0.2 allows an attacker to trigger a Denial of Service (DoS) by sending a malformed multi-part upload request. This request causes an unhandled exception, leading to a crash of the process. Users should upgrade to version 2.0.2 to receive a patch. No known workarounds are available.
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | openjs |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · ce714d77-add3-4f53-aff5-83d477b104bb (Secondary) |
Weaknesses (CWE)
Advisories
- GHSA-fjgf-rc76-4x9p — Multer vulnerable to Denial of Service via unhandled exception from malformed request
European references
- ENISA EUVD · EUVD-2025-21776
- GCVE · GCVE-0-2025-7338
CERT-FR advisories
- CERTFR-2026-AVI-0958 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0627 — Multiples vulnérabilités dans les produits Splunk · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0249 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
- CERTFR-2025-AVI-1072 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0896 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0746 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
Affected products
| Product | Versions |
|---|---|
| expressjs · multer | affected 1.4.4-lts.1 < 2.0.2 |
References
- https://github.com/expressjs/multer/security/advisories/GHSA-fjgf-rc76-4x9p
- https://github.com/expressjs/multer/commit/adfeaf669f0e7fe953eab191a762164a452d143b
- https://cna.openjsf.org/security-advisories.html
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |