CVE-2026-33244

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Source
https://cve.org/CVERecord?id=CVE-2026-33244
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-33244.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-33244
Aliases
Published
2026-06-02T16:59:31.104Z
Modified
2026-06-18T03:56:38.719386540Z
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

React Router is a router for React. In versions 7.5.1 through 7.13.1, when using Framework Mode with pre-rendering enabled, improper neutralization of the HTTP Location header value can permit Cross-Site Scripting (XSS) in the statically generated HTML files if the redirect location comes from an untrusted source. This does not impact applications using Declarative Mode (<BrowserRouter>) or Data Mode (createBrowserRouter/<RouterProvider>). This is patched in version 7.13.2.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33244.json",
    "cwe_ids": [
        "CWE-79"
    ],
    "cna_assigner": "GitHub_M"
}
References

Affected packages

Git / github.com/remix-run/react-router

Affected ranges

Type
GIT
Repo
https://github.com/remix-run/react-router
Events
Introduced
5dd7c1580f2d782bded3f906a66d57005b083db9
Fixed
aadb56fa532e0eaf7e7b91c1d88e1f325851eb04
Database specific 
{
    "cpe": "cpe:2.3:a:shopify:react-router:*:*:*:*:*:node.js:*:*",
    "source": [
        "AFFECTED_FIELD",
        "CPE_RANGE"
    ],
    "extracted_events": [
        {
            "introduced": "7.5.1"
        },
        {
            "fixed": "7.13.2"
        },
        {
            "introduced": "7.5.1"
        },
        {
            "fixed": "7.13.2"
        }
    ]
}

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-33244.json"