multer vulnerable to Denial of Service via orphaned disk writes on aborted uploads
Impact
Multer's diskStorage can leave complete, orphaned files on disk when a multipart upload is aborted in the brief window before the storage engine assigns the file path. This is an incomplete fix of CVE-2026-5038: the earlier cleanup removes only in-flight uploads that already have a path, so an upload aborted inside that window is written to disk with nothing left to remove it, and the application is not given a handle to clean it up. An unauthenticated attacker sending aborted requests to any route backed by disk storage can accumulate orphaned files until the upload directory or the shared system temporary directory is exhausted. An asynchronous destination or filename widens the window.
Patches
Users should upgrade to 2.4.0 or higher.
Workarounds
None.
Software afectado
Haz clic en una tecnología para ver todas sus vulnerabilidades.
| Plataforma | Paquete | Versiones vulnerables | Corregida en |
|---|---|---|---|
| Paquete de npm | multer | >= 2.2.0, < 2.4.0 | 2.4.0 |
Referencias
- https://github.com/expressjs/multer/security/advisories/GHSA-3pph-fpjx-jg34
- https://nvd.nist.gov/vuln/detail/CVE-2026-88932
- https://github.com/expressjs/multer/commit/53337f9713619ef3381ee6b4e541f926dbaac305
- https://cna.openjsf.org/security-advisories.html
- https://github.com/expressjs/multer
- https://github.com/expressjs/multer/releases/tag/v2.4.0
- Vector CVSS
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L- Debilidad (CWE)
CWE-400, CWE-459- Plataforma
- npm
- Paquete
multer- Publicada
- 28.09.2026
- Actualizado
- 11.10.2026 10:22
Fuentes y licencias
OSV / GitHub Advisory Database - GHSA-3pph-fpjx-jg34 - CC BY 4.0
Historial de vulnerabilidades: multer
Todas las vulnerabilidades publicadas de este paquete (Paquete de npm), de la más reciente a la más antigua. Muestra si es un fallo aislado o un paquete que hay que vigilar.
- Entradas en total
- 14
- Primera → última
- 05.2025 09.2026
- Sin corrección
- 0
- Explotada en ataques
- 0
Distribución por gravedad
- Alta 11
- Media 2
- Baja 1
Divulgaciones por año
- 2025: 4
- 2026: 10
-
multer vulnerable to Denial of Service via orphaned disk writes on aborted uploads esta entrada
Identifica las vulnerabilidades de tu aplicación
Con la integración de DockRay y el inventario de software activado, DockRay compara las versiones notificadas de los componentes con las vulnerabilidades conocidas y avisa de las coincidencias confirmadas. La cobertura depende de la tecnología compatible y de los avisos disponibles.