high8.7
CVE-2025-48997
Multer vulnerable to Denial of Service via unhandled exception
Impact
### Impact A vulnerability in Multer versions >=1.4.4-lts.1, <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. ### Patches Users should upgrade to `2.0.1` ### Workarounds None ### References https://github.com/expressjs/multer/commit/35a3272b611945155e046dd5cef11088587635e9 https://github.com/expressjs/multer/issues/1233 https://github.com/expressjs/multer/pull/1256
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | multer | >= 1.4.4-lts.1, < 2.0.1 | 2.0.1 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/expressjs/multer/commit/35a3272b611945155e046dd5cef11088587635e9
- https://github.com/expressjs/multer/issues/1233
- https://github.com/expressjs/multer/pull/1256
- https://github.com/expressjs/multer/security/advisories/GHSA-g5hg-p3ph-g8qg
- https://github.com/advisories/GHSA-g5hg-p3ph-g8qg
- https://nvd.nist.gov/vuln/detail/CVE-2025-48997