GHSA-f22v-gfqf-p8f3

Source

https://github.com/advisories/GHSA-f22v-gfqf-p8f3

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-f22v-gfqf-p8f3/GHSA-f22v-gfqf-p8f3.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-f22v-gfqf-p8f3

Aliases

CVE-2026-33244

Published

2026-06-03T20:33:01Z

Modified

2026-06-03T20:45:07.074793358Z

Severity

5.4 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N CVSS Calculator

Summary

React Router has stored XSS via unescaped Location header in prerendered redirect HTML

Details

When using React Router v7 Framework Mode with Pre-rendering enabled, an improper neutralization of the HTTP Location header value can permit Cross-Site Scripting (XSS) in statically generated HTML files if the redirect location comes from an untrusted source.

[!NOTE] This does not impact your React Router application if you are using Declarative Mode (<BrowserRouter>) or Data Mode (createBrowserRouter/<RouterProvider>).

Database specific

{
    "cwe_ids": [
        "CWE-79"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-06-03T20:33:01Z",
    "nvd_published_at": "2026-06-02T17:16:28Z",
    "severity": "MODERATE"
}

References

Affected packages

npm / react-router

Package

Name: react-router; View open source insights on deps.dev
Purl: pkg:npm/react-router

Affected ranges

Type: SEMVER
Events: Introduced

7.5.1

Fixed

7.13.2

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-f22v-gfqf-p8f3/GHSA-f22v-gfqf-p8f3.json"