React Router: RSCErrorHandler Missing Protocol Validation (XSS)

中 6.1CVE-2026-53667 · GHSA-h8fp-f39c-q6mh · 27/07/2026 公開 · 24/10/2026 更新

要点

CVE-2026-53667 は react-router (shopify), react-router に影響する深刻度「中」 (CVSS 6.1) の脆弱性です。
今後30日間に悪用される確率（EPSS）：0.36%（全脆弱性の 29.2% より高い）。
対処：7.18.0 以降に更新してください。

パッケージ	影響を受けるバージョン	修正済みバージョン
react-router shopify	`≥ 7.11.0, < 7.18.0`	`7.18.0`
react-router npm	`≥ 7.11.0, < 7.18.0`	`7.18.0`

概要

This is a follow up to https://github.com/remix-run/react-router/security/advisories/GHSA-8646-j5j9-6r62. React Router was alerted of a code path in the (unstable) RSC error handling path in which redirects from untrusted sources could still result in an XSS vector via attacker-supplied redirect targets

[!NOTE] This only affects your application if you are using the unstable RSC APIs

NVD の説明

React Router is a router for React. In versions 7.11.0 through 7.17.0, the RSCErrorHandler is missing protocol validation, allowing for redirects from untrusted sources. This issue is a follow up to CVE-2026-53667, and only affects consuming applications if they are using the unstable RSC APIs. This issue has been fixed in version 7.18.0.