CVE-2026-105238 ChatGPTNextWeb NextChat Proxy Fallback proxy.ts proxyHandler server-side request forgery

A flaw has been found in ChatGPTNextWeb NextChat up to 2.16.1. This vulnerability affects the function proxyHandler of the file app/api/proxy.ts of the component Proxy Fallback Handler. This manipulation of the argument x-base-url causes server-side request forgery. It is possible to initiate the...

CVE-2026-105238 ChatGPTNextWeb NextChat Proxy Fallback proxy.ts proxyHandler server-side request forgery

A flaw has been found in ChatGPTNextWeb NextChat up to 2.16.1. This vulnerability affects the function proxyHandler of the file app/api/proxy.ts of the component Proxy Fallback Handler. This manipulation of the argument x-base-url causes server-side request forgery. It is possible to initiate the...

EUVD-2026-92263

A flaw has been found in ChatGPTNextWeb NextChat up to 2.16.1. This vulnerability affects the function proxyHandler of the file app/api/proxy.ts of the component Proxy Fallback Handler. This manipulation of the argument x-base-url causes server-side request forgery. It is possible to initiate the...

CVE-2026-105238

The ChatGPTNextWeb NextChat software, version up to 2.16.1 , is vulnerable to a Server-Side Request Forgery (SSRF) . The flaw exists within the proxyHandler function located in app/api/proxy.ts of the Proxy Fallback Handler component. Specifically, an attacker can manipulate the x-base-url argume...

CVE-2026-86259

OpenMAIC before 1.0.1 skips server-side request forgery validation in non-production builds, allowing unauthenticated attackers to reach cloud instance metadata services. Attackers can supply arbitrary provider URLs via the x-base-url header or baseUrl parameter to access sensitive cloud...

CVE-2026-86259 OpenMAIC before 1.0.1 SSRF via Environment-Gated URL Validation

OpenMAIC before 1.0.1 skips server-side request forgery validation in non-production builds, allowing unauthenticated attackers to reach cloud instance metadata services. Attackers can supply arbitrary provider URLs via the x-base-url header or baseUrl parameter to access sensitive cloud...

CVE-2026-86259: Server-Side Request Forgery (SSRF)

OpenMAIC before 1.0.1 skips server-side request forgery validation in non-production builds, allowing unauthenticated attackers to reach cloud instance metadata services. Attackers can supply arbitrary provider URLs via the x-base-url header or baseUrl parameter to access sensitive cloud...

CVE-2026-82639

NextChat versions from 2.15.8 through 2.16.1 contain an improper URL validation vulnerability in the proxy endpoint that allows attackers to obtain the server's OpenAI API key. The x-base-url header is validated using substring matching instead of hostname parsing, allowing any URL containing...

CVE-2026-82639: Improper Input Validation

NextChat versions from 2.15.8 through 2.16.1 contain an improper URL validation vulnerability in the proxy endpoint that allows attackers to obtain the server's OpenAI API key. The x-base-url header is validated using substring matching instead of hostname parsing, allowing any URL containing...