CVE-2025-47935 (GCVE-0-2025-47935)

Vulnerability from cvelistv5 – Published: 2025-05-19 19:18 – Updated: 2025-05-27 20:28
VLAI
Title
Multer vulnerable to Denial of Service via memory leaks from unclosed streams
Summary
Multer is a node.js middleware for handling `multipart/form-data`. Versions prior to 2.0.0 are vulnerable to a resource exhaustion and memory leak issue due to improper stream handling. When the HTTP request stream emits an error, the internal `busboy` stream is not closed, violating Node.js stream safety guidance. This leads to unclosed streams accumulating over time, consuming memory and file descriptors. Under sustained or repeated failure conditions, this can result in denial of service, requiring manual server restarts to recover. All users of Multer handling file uploads are potentially impacted. Users should upgrade to 2.0.0 to receive a patch. No known workarounds are available.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-05-20 14:29 UTC
CWE
  • CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7798 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
expressjs multer Affected: < 2.0.0
guessed Create a notification for this product.
Show details on NVD website
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