High 7.3Published Oct 5, 2026

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

Updated under an hour ago (2026-10-19 06:30 UTC)

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It affects ChatGPTNextWeb NextChat. Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 0.39%, higher than 32% of scored CVEs.

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Every CVE for ChatGPTNextWeb NextChat

Exploited in the last 30 days

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.

CVSS: 7.3 HIGH (v3.1, CNA)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
Weakness (CWE): CWE-918
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): 0.39% (percentile 32)
Assigned by: VulDB
NVD analysis: Deferred
Record last updated: Oct 5, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

ChatGPTNextWeb NextChat nextchat:nextchat	2.16.0; 2.16.1	CNA record

References

https://vuldb.com/vuln/413450vdb-entry, technical-description
https://vuldb.com/vuln/413450/ctisignature, permissions-required
https://vuldb.com/cve/CVE-2026-105238third-party-advisory
https://vuldb.com/submit/975707third-party-advisory
https://github.com/ChatGPTNextWeb/NextChat/issues/6813exploit, issue-tracking
https://github.com/ChatGPTNextWeb/NextChat/pull/6884issue-tracking, patch
https://github.com/ChatGPTNextWeb/NextChat/product

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.