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CVE-2026-113872

7.5 high exploit SSVC exploitation: none Published
NVD · CVE.org

multer is a middleware for Node.js that handles multipart/form-data file uploads. In versions from 2.0.0 before 2.5.0, when multer is configured with an asynchronous fileFilter, a single request can crash the Node.js process. If the request is aborted while one file's asynchronous fileFilter is still pending, the pending callback later resumes a parsing stream that multer has already torn down, and the underlying parser emits an error on a stream that no longer has an error listener, which Node raises as an unhandled error event so the process exits. Any application using multer with an asynchronous fileFilter is affected regardless of storage engine, while uploads using a synchronous fileFilter are not affected. The issue is fixed in multer 2.5.0, and users should upgrade to 2.5.0 or later. As a workaround, use a synchronous fileFilter.

Fix

Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.

Public exploits 1

Each line links to the index that lists it, never to exploit code. Exploit-DB's "verified" and a Metasploit rank of good or better count as verified; a PoC-in-GitHub entry is a repository's claim.

Change history 6

  1. StatusAwaiting Analysis → PublishedNVD modified 2026-10-22 14:20
  2. StatusPublished → Awaiting AnalysisNVD modified 2026-10-22 19:17
  3. StatusAwaiting Analysis → PublishedNVD modified 2026-10-22 14:20
  4. StatusPublished → Awaiting AnalysisNVD modified 2026-10-22 15:25
  5. StatusReceived → PublishedNVD modified 2026-10-22 14:20
  6. First seenCVSS 7.5NVD modified 2026-10-22 15:17

Affected (CPE criteria) 0

NVD has not attached CPE configurations yet.

References 2