High severity7.5OSV Advisory· Published May 19, 2025· Updated Apr 15, 2026
CVE-2025-47944
CVE-2025-47944
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 2.0.0 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 2.0.0 to receive a patch. No known workarounds are available.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
multernpm | >= 1.4.4-lts.1, < 2.0.0 | 2.0.0 |
Affected products
4- osv-coords3 versions
< 3.12.6-r0+ 2 more
- (no CPE)range: < 3.12.6-r0
- (no CPE)range: < 3.12.6-r0
- (no CPE)range: >= 1.4.4-lts.1, < 2.0.0
Patches
Vulnerability mechanics
References
5- github.com/advisories/GHSA-4pg4-qvpc-4q3hghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2025-47944ghsaADVISORY
- github.com/expressjs/multer/commit/2c8505f207d923dd8de13a9f93a4563e59933665nvdWEB
- github.com/expressjs/multer/issues/1176nvdWEB
- github.com/expressjs/multer/security/advisories/GHSA-4pg4-qvpc-4q3hnvdWEB
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