CVE-2026-34077

7.5 HIGH

React Router is a router for React

Published: 2026-06-02 · Last updated: 2026-06-04

Severity and scoring

CVSS: 7.5 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE: CWE-770

Affected products

Vendor	Product
shopify	react-router, turbo_stream
turbo-stream	react-router, turbo_stream

Description

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.

Source: NVD

References

[NVD]https://nvd.nist.gov/vuln/detail/CVE-2026-34077
[Vendor advisory]https://github.com/remix-run/react-router/security/advisories/GHSA-rxv8-25v2-qmq8

Related CVEs

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CVE-2026-42342 — React Router is a router for React (7.5 HIGH)
CVE-2026-42211 — React Router is a router for React (8.1 HIGH)
CVE-2026-40181 — React Router is a router for React (6.1 MEDIUM)
CVE-2026-33245 — React Router is a router for React (8.0 HIGH)
CVE-2026-33244 — React Router is a router for React (5.4 MEDIUM)

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