## multer vulnerable to Denial of Service via a pending asynchronous fileFilter after request teardown

- 種別: advisory
- 重大度: high
- 関連技術: nodejs
- CVE: CVE-2026-113872
- 公開日時: 2026-10-23T22:08:22.000Z
- 情報源: GitHub Advisory Database (https://github.com/advisories/GHSA-q7qp-rjg7-q26m)
- パーマリンク: https://vulnpulse.app/items/ghsa-ghsa-q7qp-rjg7-q26m

影響: npm:multer >= 2.0.0, < 2.5.0 → 2.5.0
When multer is configured with an asynchronous fileFilter, a single request can crash the Node.js process. If a request is aborted (for example when one file is rejected) while another file's async fileFilter is still pending, the pending callback later resumes a parsing stream that multer has already torn down. busboy then emits an error on a stream that no longer has an error listener, which Node raises as an unhandled 'error' event, and the process exits. A single unauthenticated request is…