CVE-2026-34077

React Router is a router for React. In versions 7.7.0 through 7.13.1, when using React Router's unstable React Server Components RSC APIs, there is a potential client-side Cross-Site Scripting XSS vulnerability in the RSC redirect handling if redirects come from untrusted sources. This does not...

CVE-2026-33244

React Router is a router for React. In versions 7.5.1 through 7.13.1, when using Framework Mode with pre-rendering enabled, improper neutralization of the HTTP Location header value can permit Cross-Site Scripting XSS in the statically generated HTML files if the redirect location comes from an...

CVE-2026-33245

CVE-2026-33245 affects React Router versions 7.7.0–7.13.1 when using unstable React Server Components (RSC) APIs. The issue is a client-side XSS vulnerability in the RSC redirect handling if redirects originate from untrusted sources. Applications not using the unstable RSC APIs are not affected....

CVE-2026-33245

React Router is a router for React. In versions 7.7.0 through 7.13.1, when using React Router's unstable React Server Components RSC APIs, there is a potential client-side Cross-Site Scripting XSS vulnerability in the RSC redirect handling if redirects come from untrusted sources. This does not...

CVE-2026-33245 React Router vulnerable to XSS in unstable RSC redirect handling via javascript: redirect targets

React Router is a router for React. In versions 7.7.0 through 7.13.1, when using React Router's unstable React Server Components RSC APIs, there is a potential client-side Cross-Site Scripting XSS vulnerability in the RSC redirect handling if redirects come from untrusted sources. This does not...

CVE-2026-33245 React Router vulnerable to XSS in unstable RSC redirect handling via javascript: redirect targets

React Router is a router for React. In versions 7.7.0 through 7.13.1, when using React Router's unstable React Server Components RSC APIs, there is a potential client-side Cross-Site Scripting XSS vulnerability in the RSC redirect handling if redirects come from untrusted sources. This does not...

@accounter/client (>=0.0.6-alpha-20250716191627-847a4f732a66f2443e3141d5ef77222a6579ded3, <=0.0.11-alpha-20260328161521-814e4fc7c5b0b6b919590e293c0fac45b7c2513d), @boxyhq/react-ui (>=3.5.2, <=3.5.3) +154 more potentially affected by CVE-2026-33245 via react-router (>=7.7.0, <=7.13.2-pre.0)

react-router NPM version =7.7.0, =0.0.6-alpha-20250716191627-847a4f732a66f2443e3141d5ef77222a6579ded3, =3.5.2, =1.0.1-MON-198407-add-selinux-sudo-check.0, =0.0.1, =1.0.3, =3.3.7, =3.0.0-alpha.2, =3.2.0-beta.0, =0.1.9, =0.0.1, =1.21.9, =1.21.9, =0.3.1, =0.5.1 - @depup/react-router-dom 7.13.1-depup...

CVE-2026-33245

React Router is a router for React. In versions 7.7.0 through 7.13.1, when using React Router's unstable React Server Components RSC APIs, there is a potential client-side Cross-Site Scripting XSS vulnerability in the RSC redirect handling if redirects come from untrusted sources. This does not...

CVE-2026-33245 React Router vulnerable to XSS in unstable RSC redirect handling via javascript: redirect targets

React Router is a router for React. In versions 7.7.0 through 7.13.1, when using React Router's unstable React Server Components RSC APIs, there is a potential client-side Cross-Site Scripting XSS vulnerability in the RSC redirect handling if redirects come from untrusted sources. This does not...

CVE-2026-33244 React Router has stored XSS via unescaped Location header in prerendered redirect HTML

React Router is a router for React. In versions 7.5.1 through 7.13.1, when using Framework Mode with pre-rendering enabled, improper neutralization of the HTTP Location header value can permit Cross-Site Scripting XSS in the statically generated HTML files if the redirect location comes from an...

CVE-2026-33244

CVE-2026-33244 affects React Router in versions 7.5.1–7.13.1 when using Framework Mode with pre-rendering enabled. The issue is improper neutralization of the HTTP Location header value, allowing Cross-Site Scripting (XSS) in statically generated HTML if the redirect target comes from an untruste...

CVE-2026-33244 React Router has stored XSS via unescaped Location header in prerendered redirect HTML

React Router is a router for React. In versions 7.5.1 through 7.13.1, when using Framework Mode with pre-rendering enabled, improper neutralization of the HTTP Location header value can permit Cross-Site Scripting XSS in the statically generated HTML files if the redirect location comes from an...

CVE-2026-33244

React Router is a router for React. In versions 7.5.1 through 7.13.1, when using Framework Mode with pre-rendering enabled, improper neutralization of the HTTP "Location" header value can permit Cross-Site Scripting XSS in the statically generated HTML files if the redirect location comes from an...

@accounter/client (>=0.0.5-alpha-20250418160359-9049f823132a66e39d4d7a239567055e4e03266b, <=0.0.11-alpha-20260328161521-814e4fc7c5b0b6b919590e293c0fac45b7c2513d), @boxyhq/react-ui (>=3.4.1, <=3.5.3) +191 more potentially affected by CVE-2026-33244 via react-router (>=7.5.1, <=7.13.2-pre.0)

react-router NPM version =7.5.1, =0.0.5-alpha-20250418160359-9049f823132a66e39d4d7a239567055e4e03266b, =3.4.1, =0.2.3, =1.0.1-MON-198407-add-selinux-sudo-check.0, =0.0.1, =1.0.3, =0.1.0, =3.3.7, =3.0.0-alpha.2, =3.2.0-beta.0, =15.9.0, =0.1.9, =0.0.1-dev.8, =0.0.2-1 and more Source cves:...

CVE-2026-33244 React Router has stored XSS via unescaped Location header in prerendered redirect HTML

React Router is a router for React. In versions 7.5.1 through 7.13.1, when using Framework Mode with pre-rendering enabled, improper neutralization of the HTTP Location header value can permit Cross-Site Scripting XSS in the statically generated HTML files if the redirect location comes from an...

PT-2026-45828

Name of the Vulnerable Software and Affected Versions React Router versions 7.7.0 through 7.13.1 React Router versions prior to 7.14.0 Remix versions 2.9.0 and later Description Two distinct issues were identified. First, a client-side Cross-Site Scripting XSS flaw exists in the handling of...

CVE-2026-42211: Deserialization of Untrusted Data

React Router is a router for React. In versions 7.0.0 through 7.14.1, when using Framework Mode, a combination of steps could potentially allow unauthorized remote code execution RCE through external requests. This attack requires the application code to have an existing prototype pollution...

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-2026-40181: URL Redirection to Untrusted Site

React Router is a router for React. In versions 7.0.0 through 7.14.0 and 6.7.0 through 6.30.3, certain URLs passed to the redirect function can trigger an open redirect to an external domain due to path values starting with // being reinterpreted as protocol-relative URLs. The level of impact...

PT-2026-45835

Name of the Vulnerable Software and Affected Versions react-router versions 7.0.0 through 7.14.x @remix-run/server-runtime versions 2.10.0 through 2.17.4 Description Certain crafted requests can cause disproportionate server resource consumption through unbounded path expansion at the manifest...