CVE-2026-53663

React Router is a router for React. From 7.12.0 until 7.15.1, certain CSRF checks in React Router v7 Framework Mode were insufficient and run on POST requests, but were bypassed on PUT/PATCH/DELETE requests. This is a low severity vulnerability because modern browser protections (CORS preflight, SameSite cookies) already block the cross-origin attack vectors that this missing CSRF check would otherwise gate. This vulnerability is fixed in 7.15.1.

Database specific

{
    "unresolved_ranges": [
        {
            "source": "AFFECTED_FIELD",
            "extracted_events": [
                {
                    "introduced": "2.17.3"
                },
                {
                    "fixed": "2.17.5"
                }
            ]
        }
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53663.json",
    "cwe_ids": [
        "CWE-352"
    ],
    "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

26653a6bcbf8a9c5541f99dcfb526eafadf13434

Fixed

587d08fca6ca61e00f44c1eda95bf6e6a9ab76ef

Database specific

{
    "source": "AFFECTED_FIELD",
    "extracted_events": [
        {
            "introduced": "7.12.0"
        },
        {
            "fixed": "7.15.1"
        }
    ]
}

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53663.json"