PT-2026-39894

Name of the Vulnerable Software and Affected Versions RVF versions 6.0.0 through 6.0.3 RVF versions 7.0.0 through 7.0.1 Description The setPath function in @rvf/set-get used by @rvf/core to flatten incoming form data into a nested object fails to block the keys proto , constructor, or prototype...

Security Bulletin: XSS Vulnerability in React Router meta()/Meta APIs During SSR, affects watsonx.data

Summary React Router @remix-run/react 1.15.0–2.17.0, react-router 7.0.0–7.8.2 is vulnerable to XSS in meta/Meta APIs when generating script:ld+json tags in Framework Mode. Arbitrary JavaScript could execute during SSR if untrusted content is used. No impact occurs in Declarative Mode BrowserRoute...

SUSE CVE-2026-21884

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...

Linux Distros Unpatched Vulnerability : CVE-2025-59057

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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 exist...

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...

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...

@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...

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...

Remix and React Router allow URL manipulation via Host / X-Forwarded-Host headers

Impact We received a report about a vulnerability in Remix/React Router that affects all Remix 2 and React Router 7 consumers using the Express adapter. Basically, this vulnerability allows anyone to spoof the URL used in an incoming Request by putting a URL pathname in the port section of a URL...