vulnerability-in-Remix-React-Router-CVE-2025-31137-

概要 私は @zhero の個人ブログ記事の writeup を読んだ後、仕組みを学ぶためにこの CTF を作成することにしました。その後、この脆弱性の悪用を学びたい人なら誰でも共有できるようにすることにしました。[email protected] バージョンで CTF を作成しようとしましたが、@remix-run/express を確認したところ、コードが修正されていることに気付きました。そこで、脆弱性のあるコードを彼らの GitHub からコピー＆ペーストしました。以下の指示に従って、@remix-run/express パッケージのコードを変更する必要があります。 目標...

CLSA-2026-1789597929 TuxCare security update for @remix-run/router (1 CVE)

TuxCare rebuilt @remix-run/router to address 1 CVE. Fixed in 1.23.0-tuxcare.3...

@remix-run/architect (>=2.17.3, <=2.17.4), @remix-run/cloudflare (>=2.17.3, <=2.17.4) +10 more potentially affected by CVE-2026-53663 via @remix-run/server-runtime (>=2.17.3, <=2.17.4)

@remix-run/server-runtime NPM version =2.17.3, =2.17.3, =2.17.3, =2.17.3, =2.17.3, =2.17.3, =2.17.3, =2.17.3, =2.17.3, =2.17.3, =2.17.3, =2.17.3, =0.11.30, =0.12.30 Source cves: CVE-2026-53663 Source advisory: SNYK:JS-REMIXRUNSERVERRUNTIME-17342509...

@1023-ventures/merope2 (>=0.2.1, <=0.2.9), @1023-ventures/vega-core (>=0.5.0, <=0.6.2) +1334 more potentially affected by CVE-2026-40181 via @remix-run/router (>=1.3.0, <=1.23.2-pre-v6.0)

@remix-run/router NPM version =1.3.0, =0.2.1, =0.5.0, =0.0.1, =0.0.1, =3.0.0, =0.0.0-beta-20260120211922, =1.0.0, =1.0.0, =1.0.0, =2.7.0, =0.0.1, =0.1.0, =0.0.0, =2.13.1, =2.13.94 and more Source cves: CVE-2026-40181 Source advisory: OSV:GHSA-2J2X-HQR9-3H42...

CVE-2026-42342: Uncontrolled Resource Consumption

React Router is a router for React. In versions 7.0.0 through 7.14.x of react-router and versions 2.10.0 through 2.17.4 of @remix-run/server-runtime, certain crafted requests can consume disproportionate server resources via unbounded path expansion in the manifest endpoint, resulting in response...

CVE-2026-21884 React Router SSR XSS in ScrollRestoration

React Router is a router for React. In @remix-run/react version prior to 2.17.3. and react-router 7.0.0 through 7.11.0, a XSS vulnerability exists in in React Router's API in Framework Mode when using the getKey/storageKey props during Server-Side Rendering which could allow arbitrary JavaScript...

CVE-2025-61686 React Router has Path Traversal in File Session Storage

React Router is a router for React. In @react-router/node versions 7.0.0 through 7.9.3, @remix-run/deno prior to version 2.17.2, and @remix-run/node prior to version 2.17.2, if createFileSessionStorage is being used from @react-router/node or @remix-run/node/@remix-run/deno in Remix v2 with an...

CVE-2026-21884: Improper Neutralization of Input During Web Page Generation

React Router is a router for React. In @remix-run/react version prior to 2.17.3. and react-router 7.0.0 through 7.11.0, a XSS vulnerability exists in in React Router's API in Framework Mode when using the getKey/storageKey props during Server-Side Rendering which could allow arbitrary JavaScript...

CVE-2025-61686: Improper Limitation of a Pathname to a Restricted Directory

React Router is a router for React. In @react-router/node versions 7.0.0 through 7.9.3, @remix-run/deno prior to version 2.17.2, and @remix-run/node prior to version 2.17.2, if createFileSessionStorage is being used from @react-router/node or @remix-run/node/@remix-run/deno in Remix v2 with an...

CVE-2026-22029: Improper Neutralization of Input During Web Page Generation

React Router is a router for React. In @remix-run/router version prior to 1.23.2 and react-router 7.0.0 through 7.11.0, React Router and Remix v1/v2 SPA open navigation redirects originating from loaders or actions in Framework Mode, Data Mode, or the unstable RSC modes can result in unsafe URLs...

@buttery/tokens (>=0.1.2, <=0.1.10), @common-stack/frontend-stack-react (>=6.0.6-alpha.23, <=10.0.1-alpha.0) +29 more potentially affected by CVE-2026-22030 via @remix-run/server-runtime (>=2.0.0, <=2.17.2)

@remix-run/server-runtime NPM version =2.0.0, =0.1.2, =6.0.6-alpha.23, =6.0.6-alpha.28, =2.9.1-dario-6, =0.1.0, =5.6.0, =5.13.0, =5.6.0, =5.6.0, =0.0.1-alpha.0, =2.0.0-pre.0, =2.0.0-pre.0, =2.0.0-pre.0, =2.0.0-pre.0, =2.0.0-pre.0, =2.17.2 and more Source cves: CVE-2026-22030 Source advisory:...

@buttery/tokens (>=0.1.2, <=0.1.10), @common-stack/frontend-stack-react (>=6.0.6-alpha.23, <=10.0.1-alpha.0) +29 more potentially affected by CVE-2026-22030 via @remix-run/server-runtime (>=2.0.0, <=2.17.2)

@remix-run/server-runtime NPM version =2.0.0, =0.1.2, =6.0.6-alpha.23, =6.0.6-alpha.28, =2.9.1-dario-6, =0.1.0, =5.6.0, =5.13.0, =5.6.0, =5.6.0, =0.0.1-alpha.0, =2.0.0-pre.0, =2.0.0-pre.0, =2.0.0-pre.0, =2.0.0-pre.0, =2.0.0-pre.0, =2.17.2 and more Source cves: CVE-2026-22030 Source advisory:...

@1023-ventures/merope2 (>=0.2.1, <=0.2.9), @1023-ventures/vega-core (>=0.5.0, <=0.6.2) +1395 more potentially affected by CVE-2026-22029 via @remix-run/router (>=1.0.0, <=1.23.1-pre-v6.0)

@remix-run/router NPM version =1.0.0, =0.2.1, =0.5.0, =0.0.1, =0.0.1, =3.0.0, =0.0.0-beta-20260120211922, =1.0.0, =1.0.0, =1.0.0, =2.7.0, =0.0.1, =0.1.0, =0.0.0, =6.24.1, =8.19.1 and more Source cves: CVE-2026-22029 Source advisory: SNYK:JS-REMIXRUNROUTER-14908530...

@buttery/tokens (>=0.1.2, <=0.1.10), @common-stack/frontend-stack-react (>=6.0.6-alpha.23, <=10.0.1-alpha.0) +7 more potentially affected by CVE-2026-21884 via @remix-run/react (>=2.0.0, <=2.17.2)

@remix-run/react NPM version =2.0.0, =0.1.2, =6.0.6-alpha.23, =0.1.0, =5.6.0, =0.0.1-alpha.0, =2.0.0-pre.0, =3.0.0, =0.4.0, =0.11.29 Source cves: CVE-2026-21884 Source advisory: SNYK:JS-REMIXRUNREACT-14908292...

@buttery/tokens (>=0.1.2, <=0.1.10), @common-stack/frontend-stack-react (>=6.0.6-alpha.23, <=10.0.1-alpha.0) +7 more potentially affected by CVE-2026-21884 via @remix-run/react (>=2.0.0, <=2.17.2)

@remix-run/react NPM version =2.0.0, =0.1.2, =6.0.6-alpha.23, =0.1.0, =5.6.0, =0.0.1-alpha.0, =2.0.0-pre.0, =3.0.0, =0.4.0, =0.11.29 Source cves: CVE-2026-21884 Source advisory: OSV:GHSA-8V8X-CX79-35W7...

@1023-ventures/merope2 (>=0.2.1, <=0.2.9), @1023-ventures/vega-core (>=0.5.0, <=0.6.2) +1395 more potentially affected by CVE-2025-68470 via @remix-run/router (>=1.0.0, <=1.23.0-pre-v6.0)

@remix-run/router NPM version =1.0.0, =0.2.1, =0.5.0, =0.0.1, =0.0.1, =3.0.0, =0.0.0-beta-20260120211922, =1.0.0, =1.0.0, =1.0.0, =2.7.0, =0.0.1, =0.1.0, =0.0.0, =6.24.1, =8.19.1 and more Source cves: CVE-2025-68470 Source advisory: SNYK:JS-REMIXRUNROUTER-14908287...

@buttery/tokens (>=0.1.2, <=0.1.10), @common-stack/frontend-stack-react (>=6.0.6-alpha.23, <=10.0.1-alpha.0) +19 more potentially affected by CVE-2025-61686 via @remix-run/node (>=2.0.0, <=2.17.1)

@remix-run/node NPM version =2.0.0, =0.1.2, =6.0.6-alpha.23, =6.0.6-alpha.28, =2.9.1-dario-6, =0.1.0, =5.6.0, =5.13.0, =5.6.0, =5.6.0, =0.0.1-alpha.0, =2.0.0-pre.0, =2.2.0-pre.0, =2.0.0-pre.0, =2.0.0-pre.0, =2.0.0-pre.0, =2.17.1 and more Source cves: CVE-2025-61686 Source advisory:...

@buttery/tokens (>=0.1.2, <=0.1.10), @common-stack/frontend-stack-react (>=6.0.6-alpha.23, <=10.0.1-alpha.0) +19 more potentially affected by CVE-2025-61686 via @remix-run/node (>=2.0.0, <=2.17.1)

@remix-run/node NPM version =2.0.0, =0.1.2, =6.0.6-alpha.23, =6.0.6-alpha.28, =2.9.1-dario-6, =0.1.0, =5.6.0, =5.13.0, =5.6.0, =5.6.0, =0.0.1-alpha.0, =2.0.0-pre.0, =2.2.0-pre.0, =2.0.0-pre.0, =2.0.0-pre.0, =2.0.0-pre.0, =2.17.1 and more Source cves: CVE-2025-61686 Source advisory:...

@b42inc/remix-i18n (0.0.1), @briandlee/remix-return-navigation (>=1.0.0-post, <=1.1.0-dev0) +68 more potentially affected by CVE-2025-59057 via @remix-run/react (>=1.15.0, <=2.17.0-pre.1)

@remix-run/react NPM version =1.15.0, =1.0.0-post, =0.1.2, =1.0.0, =6.0.6-alpha.23, =0.0.2-alpha.0, =0.0.1, =0.0.1, =0.1.0, =1.0.0, =0.0.22, =0.0.6, =0.0.1, =5.6.0, =5.28.0 and more Source cves: CVE-2025-59057 Source advisory: OSV:GHSA-3CGP-3XVW-98X8...

@b42inc/remix-i18n (0.0.1), @briandlee/remix-return-navigation (>=1.0.0-post, <=1.1.0-dev0) +68 more potentially affected by CVE-2025-59057 via @remix-run/react (>=1.15.0, <=2.17.0-pre.1)

@remix-run/react NPM version =1.15.0, =1.0.0-post, =0.1.2, =1.0.0, =6.0.6-alpha.23, =0.0.2-alpha.0, =0.0.1, =0.0.1, =0.1.0, =1.0.0, =0.0.22, =0.0.6, =0.0.1, =5.6.0, =5.28.0 and more Source cves: CVE-2025-59057 Source advisory: SNYK:JS-REMIXRUNREACT-14908290...