CVE-2026-105238

HIGH 7.3

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

CVSS Score

7.3

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-918
Vendor	chatgptnextweb
Product	nextchat
Published	Oct 5, 2026

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CVSS v3 Breakdown

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

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

ChatGPTNextWeb / NextChat

2.16.0 2.16.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/413450 vuldb.com: https://vuldb.com/vuln/413450/cti vuldb.com: https://vuldb.com/cve/CVE-2026-105238 vuldb.com: https://vuldb.com/submit/975707 github.com: https://github.com/ChatGPTNextWeb/NextChat/issues/6813 github.com: https://github.com/ChatGPTNextWeb/NextChat/pull/6884 github.com: https://github.com/ChatGPTNextWeb/NextChat/

Credits

🔍 geochen (VulDB User) VulDB CNA Team