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CVE-2025-7338GHSA-FJGF-RC76-4X9P

Multer vulnerable to Denial of Service via unhandled exception from malformed request

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 2.0.2
1 proof of concept on GitHub
  • Exploitation: none
  • Automatable: yes
  • Technical impact: partial

Summary

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 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 2.0.2 to receive a patch. No known workarounds are available.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: yes · Technical impact: partial

  3. Record last updated

Affected versions

  • expressjs multer

    From 1.4.4-lts.1 · fixed in 2.0.2

  • multernpm

    From 1.4.4-lts.1 · fixed in 2.0.2

References 4

GitHub · expressjs/multer

cna.openjsf.org

GitHub · r2c-CSE/multer-sca-rule-test_cve-2025-7338