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 2.0.1 allows an attacker to trigger a Denial of Service (DoS) by sending an upload file request with an empty string field name. This request causes an unhandled exception, leading to a crash of the process. Users should upgrade to `2.0.1` to receive a patch. No known workarounds are available.
| Package (Ecosystem) | Introduced | Fixed | Limit |
|---|---|---|---|
| multer(npm) | 1.4.4-lts.1 | 2.0.1 | N/A |
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