expressjs/multer · Security
Multer vulnerable to Denial of Service via unhandled exception
- GHSA ID
- GHSA-g5hg-p3ph-g8qg
- CVE ID
- CVE-2025-48997
- Severity
- high
- Published
- Updated
- CVSS v4
- 8.7 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Description
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
CWEs
- CWE-248 · Uncaught Exception
References
- https://github.com/expressjs/multer/security/advisories/GHSA-g5hg-p3ph-g8qg ↗
- https://nvd.nist.gov/vuln/detail/CVE-2025-48997 ↗
- https://github.com/expressjs/multer/issues/1233 ↗
- https://github.com/expressjs/multer/pull/1256 ↗
- https://github.com/expressjs/multer/commit/35a3272b611945155e046dd5cef11088587635e9 ↗
- https://github.com/advisories/GHSA-g5hg-p3ph-g8qg ↗