## Seroval `fromJSON`/`fromCrossJSON` denial of service via unvalidated array node length

- 種別: advisory
- 重大度: high
- 関連技術: nodejs
- CVE: CVE-2026-116584
- 公開日時: 2026-10-28T21:17:20.000Z
- 情報源: GitHub Advisory Database (https://github.com/advisories/GHSA-wp97-x4hv-qvhp)
- パーマリンク: https://vulnpulse.app/items/ghsa-ghsa-wp97-x4hv-qvhp

影響: npm:seroval >= 1.4.1, <= 1.6.7 → 1.6.8
fromJSON and fromCrossJSON did not check that an array node's element list is an array. A small crafted payload could set the length the decoder used. That length controlled how much memory was allocated and how many times the decoder looped, and it did not depend on the size of the payload. Impact A service that passes untrusted input to fromJSON or fromCrossJSON can be made unavailable by an unauthenticated request. - A small payload can allocate enough memory to end the process. - A small pa…