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Vulnerabilities
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CVE-2026-34077

Updated on 02 Jun 2026

Severity

7.5 High severity

Details

CVSS score
7.5
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE ID
Links
NISTCIRCLRHELUbuntu

Overview

About vulnerability

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 impact applications that are not using the unstable RSC APIs in React Router. This is patched in version 7.13.2.

Details

Affected product:
React , turbo-stream
Affected packages:
create-react-router @ 7.5.1 (+11 more)
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 impact applications that are not using the unstable RSC APIs in React Router. This is patched in version 7.13.2.