ReactRouter @remix-run/router<1.23.2/ReactRouter<7.12.0 OpenURL to JS Exec
CVE-2026-22029 Published on January 10, 2026
React Router vulnerable to XSS via Open Redirects
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 causing unintended javascript execution on the client. This is only an issue if you are creating redirect paths from untrusted content or via an open redirect. There is no impact if Declarative Mode (<BrowserRouter>) is being used. This issue has been patched in @remix-run/router version 1.23.2 and react-router version 7.12.0.
Vulnerability Analysis
CVE-2026-22029 can be exploited with network access, requires user interaction. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality and integrity, and no impact on availability.
Weakness Type
What is a XSS Vulnerability?
The software does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
CVE-2026-22029 has been classified to as a XSS vulnerability or weakness.
Affected Versions
remix-run react-router:- Version @remix-run/router < 1.23.2 is affected.
- Version react-router >= 7.0.0, < 7.12.0 is affected.
Vulnerable Packages
The following package name and versions may be associated with CVE-2026-22029
| Package Manager | Vulnerable Package | Versions | Fixed In |
|---|---|---|---|
| npm | react-router | >= 7.0.0, <= 7.11.0 | 7.12.0 |
| npm | @remix-run/router | <= 1.23.1 | 1.23.2 |
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.