CVE-2025-59057 React Router has XSS Vulnerability

React Router is a router for React. In @remix-run/react versions 1.15.0 through 2.17.0. and react-router versions 7.0.0 through 7.8.2, a XSS vulnerability exists in in React Router's meta/ APIs in Framework Mode when generating script:ld+json tags which could allow arbitrary JavaScript execution...

PT-2026-2138

Name of the Vulnerable Software and Affected Versions react-router versions 7.0.0 through 7.11.0 @remix-run/server-runtime versions prior to 2.17.3 Description React Router, used as a router for React applications, is susceptible to Cross-Site Request Forgery CSRF attacks. This affects document...

Cross-site Request Forgery (CSRF)

Overview @remix-run/server-runtime is a Server runtime for Remix Affected versions of this package are vulnerable to Cross-site Request Forgery CSRF due to the improper origin checks of UI route submissions in server-side route action handlers in Framework Mode. An attacker can execute unauthoriz...

React Router has CSRF issue in Action/Server Action Request Processing

React Router or Remix v2 is vulnerable to CSRF attacks on document POST requests to UI routes when using server-side route action handlers in Framework Mode, or when using React Server Actions in the new unstable RSC modes. !NOTE This does not impact your application if you are using Declarative...

@buttery/tokens (>=0.1.2 <=0.1.10), @common-stack/frontend-stack-react (>=6.0.6-alpha.23 <=10.0.1-alpha.0) +26 more potentially affected by CVE-2026-22030 via @remix-run/server-runtime (>=2.0.0-pre.0 <=2.17.2)

@remix-run/server-runtime NPM version =2.0.0-pre.0, =0.1.2, =6.0.6-alpha.23, =6.0.6-alpha.28, =0.1.0, =5.6.0, =5.13.0, =5.6.0, =5.6.0, =0.1.36, =2.0.0, =2.0.0, =2.0.0, =2.0.0, =2.0.0, =2.0.0, =2.17.2 and more Source cves: CVE-2026-22030 Source advisory: SNYK:JS-REMIXRUNSERVERRUNTIME-14908428...

@1023-ventures/merope2 (>=0.2.1 <=0.2.9), @1023-ventures/vega-core (>=0.5.0 <=0.6.2) +791 more potentially affected by CVE-2026-22029 via @remix-run/router (>=1.0.0 <=1.23.2-pre-v6.0)

@remix-run/router NPM version =1.0.0, =0.2.1, =0.5.0, =0.0.1, =0.0.1, =1.0.0, =1.0.0, =1.0.0, =2.7.0, =0.0.1, =0.1.0, =0.0.0, =1.0.1, =0.0.6, =0.1.2 - @alola-react/app-tools =0.0.1 and more Source cves: CVE-2026-22029 Source advisory: SNYK:JS-REMIXRUNROUTER-14908530...

Cross-site Scripting (XSS)

Overview @remix-run/router is a Nested/Data-driven/Framework-agnostic Routing Affected versions of this package are vulnerable to Cross-site Scripting XSS in the navigation redirect process for loaders or actions in Framework Mode, Data Mode, or the unstable RSC modes. An attacker can execute...

React Router vulnerable to XSS via Open Redirects

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 causing unintended javascript execution on the client. This is only an issue if developers are creating redirect paths...

Cross-site Scripting (XSS)

Overview @remix-run/react is a React DOM bindings for Remix Affected versions of this package are vulnerable to Cross-site Scripting XSS via the ScrollRestoration API when using the getKey or storageKey props during server-side rendering in Framework Mode. An attacker can execute arbitrary...

@buttery/tokens (>=0.1.2 <=0.1.10), @common-stack/frontend-stack-react (>=6.0.6-alpha.23 <=10.0.1-alpha.0) +6 more potentially affected by CVE-2026-21884 via @remix-run/react (>=2.0.0-pre.0 <=2.17.2)

@remix-run/react NPM version =2.0.0-pre.0, =0.1.2, =6.0.6-alpha.23, =0.1.0, =5.6.0, =0.1.36, =2.0.0, =3.0.0, =0.9.84, =0.11.29 Source cves: CVE-2026-21884 Source advisory: SNYK:JS-REMIXRUNREACT-14908292...

@b42inc/remix-i18n (=0.0.1), @briandlee/remix-return-navigation (>=1.0.0 <=1.1.0-dev0) +72 more potentially affected by CVE-2026-21884 via @remix-run/react (>=0.0.0-experimental-a7ab46039 <=2.17.2)

@remix-run/react NPM version =0.0.0-experimental-a7ab46039, =1.0.0, =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, =0.1.0, =0.0.1, =5.0.4 and more 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) +791 more potentially affected by CVE-2025-68470 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, =1.0.0, =1.0.0, =1.0.0, =2.7.0, =0.0.1, =0.1.0, =0.0.0, =1.0.1, =0.0.6, =0.1.2 - @alola-react/app-tools =0.0.1 and more Source cves: CVE-2025-68470 Source advisory: SNYK:JS-REMIXRUNROUTER-14908287...

Open Redirect

Overview @remix-run/router is a Nested/Data-driven/Framework-agnostic Routing Affected versions of this package are vulnerable to Open Redirect via the resolvePath function when used with navigate, , or redirect. An attacker can cause the application to redirect users to external, potentially...

@buttery/tokens (>=0.1.2 <=0.1.10), @common-stack/frontend-stack-react (>=6.0.6-alpha.23 <=10.0.1-alpha.0) +18 more potentially affected by CVE-2025-61686 via @remix-run/node (>=2.0.0-pre.0 <=2.17.1)

@remix-run/node NPM version =2.0.0-pre.0, =0.1.2, =6.0.6-alpha.23, =6.0.6-alpha.28, =0.1.0, =5.6.0, =5.13.0, =5.6.0, =5.6.0, =0.1.36, =2.0.0, =2.10.0, =2.0.0, =2.0.0, =2.0.0, =2.0.0, =2.0.1 and more Source cves: CVE-2025-61686 Source advisory: SNYK:JS-REMIXRUNNODE-14908858...

GHSA-9583-H5HC-X8CW React Router has Path Traversal in File Session Storage

If applications use createFileSessionStorage from @react-router/node or @remix-run/node/@remix-run/deno in Remix v2 with an unsigned cookie, it is possible for an attacker to cause the session to try to read/write from a location outside the specified session file directory. The success of the...

@b42inc/remix-i18n (=0.0.1), @briandlee/remix-return-navigation (>=1.0.0 <=1.1.0-dev0) +70 more potentially affected by CVE-2025-59057 via @remix-run/react (>=1.15.0 <=2.17.0)

@remix-run/react NPM version =1.15.0, =1.0.0, =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...

Cross-site Scripting (XSS)

Overview @remix-run/react is a React DOM bindings for Remix Affected versions of this package are vulnerable to Cross-site Scripting XSS via the Meta API in Framework Mode when generating script:ld+json tags during server-side rendering with untrusted content. An attacker can execute arbitrary...

@b42inc/remix-i18n (=0.0.1), @briandlee/remix-return-navigation (>=1.0.0 <=1.1.0-dev0) +70 more potentially affected by CVE-2025-59057 via @remix-run/react (>=1.15.0 <=2.17.0)

@remix-run/react NPM version =1.15.0, =1.0.0, =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...

PT-2026-2120

Name of the Vulnerable Software and Affected Versions @remix-run/react versions prior to 2.17.3 react-router versions 7.0.0 through 7.11.0 Description React Router, a router for React, contains a cross-site scripting XSS issue within the API when operating in Framework Mode during Server-Side...

PT-2026-2137

Name of the Vulnerable Software and Affected Versions React Router versions 7.0.0 through 7.11.0 @remix-run/router versions prior to 1.23.2 Description React Router, a router for React, is susceptible to open redirect issues. Specifically, Single Page Applications SPAs using React Router and Remi...