Multer vulnerable to Denial of Service via unhandled exception from malformed request
### Impact A vulnerability in Multer versions >= 1.4.4-lts.1, < 2.0.2 allows an attacker to trigger a Denial of Service (DoS) by sending a malformed request. This request causes an unhandled exception, leading to a crash of the process. ### Patches Users should upgrade to `2.0.2` ### Workarounds None
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describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2025-7338US | — | Exploit | ||
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 2.0.2 allows an attacker to… | ||||
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references
External citations — patches, advisories, analysis.
- https://cna.openjsf.org/security-advisories.htmlWEB
- https://github.com/expressjs/multerPACKAGE
- https://github.com/expressjs/multer/commit/adfeaf669f0e7fe953eab191a762164a452d143bWEB
- https://github.com/expressjs/multer/security/advisories/GHSA-fjgf-rc76-4x9pWEB
- https://nvd.nist.gov/vuln/detail/CVE-2025-7338ADVISORY
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