CVE-2026-7643— ChatGPTNextWeb NextChat API Endpoint Next.js cross-domain policy
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I. Basic Information for CVE-2026-7643
Vulnerability Information
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Vulnerability Title
ChatGPTNextWeb NextChat API Endpoint Next.js cross-domain policy
Source: NVD (National Vulnerability Database)
Vulnerability Description
A flaw has been found in ChatGPTNextWeb NextChat up to 2.16.1. This impacts an unknown function of the file Next.js of the component API Endpoint. Executing a manipulation can lead to permissive cross-domain policy with untrusted domains. The attack may be launched remotely. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
过度许可的跨域白名单
Source: NVD (National Vulnerability Database)
Vulnerability Title
NextChat 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
NextChat是NextChat开源的一个用于快速部署私人 ChatGPT 网页应用的项目。 NextChat 2.16.1及之前版本存在访问控制错误漏洞，该漏洞源于Next.js文件中未知函数存在跨域策略不当，可能导致远程攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| ChatGPTNextWeb | NextChat | 2.16.0 | - |
II. Public POCs for CVE-2026-7643
| # | POC Description | Source Link | Shenlong Link |
|---|
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IV. Related Vulnerabilities
Same product: NextChat
Same vendor: ChatGPTNextWeb
- CVE-2026-7644
ChatGPTNextWeb NextChat actions.ts addMcpServer improper aut - CVE-2026-7178
ChatGPTNextWeb NextChat Artifacts Endpoint route.ts storeUrl - CVE-2026-7177
ChatGPTNextWeb NextChat route.ts proxyHandler server-side re - CVE-2024-38514
NextChat Server-Side Request Forgery (SSRF) - CVE-2023-49785
NextChat vulnerable to Server-Side Request Forgery and Cross
Same weakness: CWE-942
- CVE-2026-7581
alexta69 MeTube CORS Policy main.py on_prepare cross-domain - CVE-2026-41056
AVideos has CORS Origin Reflection with Credentials on Sensi - CVE-2026-6662
ericc-ch copilot-api Token Endpoint server.ts cors cross-dom - CVE-2026-6143
farion1231 cc-switch ProxyServer server.rs cross-domain poli - CVE-2026-5302
Permissive Cross-domain Policy with Untrusted Domains in coo
V. Comments for CVE-2026-7643
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