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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.

PUBLISHED Reserved 2026-03-25 | Published 2026-06-02 | Updated 2026-06-03 | Assigner GitHub_M




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

Problem types

CWE-770: Allocation of Resources Without Limits or Throttling

Product status

>= 7.0.0, < 7.14.0
affected

< 3.0.0
affected

References

github.com/...router/security/advisories/GHSA-rxv8-25v2-qmq8

cve.org (CVE-2026-34077)

nvd.nist.gov (CVE-2026-34077)

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