CVE-2026-105238
ChatGPTNextWeb NextChat Proxy Fallback proxy.ts proxyHandler server-side request forgery
- State
- Published
- Severity
- 6.9 Medium
- Published
- Oct 5, 2026
- Updated
- Oct 5, 2026
- Reserved
- Oct 4, 2026
Description
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 attack remotely. The exploit has been published and may be used. The pull request to fix this issue awaits acceptance.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.9 Medium | 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 | VulDB |
| 3.1 | 7.3 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C | VulDB |
| 3.0 | 7.3 High | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C | VulDB |
| 2.0 | 7.5 High | AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:C | VulDB |
Weaknesses
- CWE-918 Server-Side Request Forgery
Affected Products
| Product | Versions |
|---|---|
NextChatChatGPTNextWeb |
|
References
- VDB-413450 | ChatGPTNextWeb NextChat Proxy Fallback proxy.ts proxyHandler server-side request forgeryvdb-entrytechnical-description
- VDB-413450 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- CVE-2026-105238 | CVE Analysis and Reportthird-party-advisory
- Submit #975707 | https://github.com/ChatGPTNextWeb/ NextChat v2.16.1 Server-Side Request Forgerythird-party-advisory
- https://github.com/ChatGPTNextWeb/NextChat/issues/6813exploitissue-tracking
- https://github.com/ChatGPTNextWeb/NextChat/pull/6884issue-trackingpatch
- https://github.com/ChatGPTNextWeb/NextChat/product
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