---
cve: "CVE-2026-53663"
severity: "LOW"
cvss: 3.1
epss: "15%"
vendor: "@remix-run"
kev: false
exploited: false
published: "2026-06-22 17:39:29"
tags: [cve, security, low]
source: tsecurity.de CVE-Dossier
exported: "2026-09-11T12:05:18+02:00"
---

# CVE-2026-53663

> 3.1 LOW · 🧪 PoC

## Beschreibung

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.

## CVSS-Vektor

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

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Hoch | good |
| PR Privilegien | Keine | bad |
| UI Interaktion | Erforderlich | good |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Keine | good |
| I Integrität | Gering | warn |
| A Verfügbarkeit | Keine | good |

## Patch verfügbar (OSV)

- 587d08fca6ca61e00f44c1eda95bf6e6a9ab76ef (Commit)

## Referenzen

- <https://github.com/remix-run/react-router/security/advisories/GHSA-84g9-w2xq-vcv6>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-53663) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_