---
cve: "CVE-2026-7644"
severity: "MEDIUM"
cvss: 6.9
epss: "31%"
vendor: "ChatGPTNextWeb"
kev: false
exploited: false
published: "2026-05-02 15:16:14"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-03T01:37:27+02:00"
---

# CVE-2026-7644

> 6.9 MEDIUM · 🧪 PoC

## Beschreibung

A vulnerability has been found in ChatGPTNextWeb NextChat up to 2.16.1. Affected is the function addMcpServer of the file app/mcp/actions.ts. The manipulation leads to improper authorization. Remote exploitation of the attack is possible. The exploit has been disclosed to the public and may be used. The project was informed of the problem early through an issue report but has not responded yet.

## CVSS-Vektor

```
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |

## Referenzen

- <https://vuldb.com/vuln/360756>
- <https://vuldb.com/vuln/360756/cti>
- <https://vuldb.com/submit/806851>
- <https://github.com/ChatGPTNextWeb/NextChat/issues/6757>
- <https://github.com/ChatGPTNextWeb/NextChat/>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-7644) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_