CVE-2025-48997
High
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 2.0.1 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.
SeverityHigh
CVSS8.7
Exploit probability—
ProductMulter
PublishedJun 3, 2025
First seenJun 3, 2025
Weakness typeCWE-248CWE-248
How to fix
Update
- multer2.0.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| multernpm | 1.4.4-lts.1 ≤ v < 2.0.1 | 2.0.1 |
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