Medium 4.3Published May 2, 2026

CVE-2026-7643ChatGPTNextWeb NextChat API Endpoint Next.js cross-domain policy

Updated under an hour ago (Oct 26, 2026, 3:10 AM ET)

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

No exploitation reported and no EPSS estimate yet.

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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 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.

CVSS: 4.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R
Weakness (CWE): CWE-942, CWE-346
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulDB
NVD analysis: Deferred
Record last updated: May 4, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

ChatGPTNextWeb NextChat chatgptnextweb:nextchat (from the name)	2.16.0; 2.16.1	CNA record

References

https://vuldb.com/vuln/360755vdb-entry
https://vuldb.com/vuln/360755/ctisignature, permissions-required
https://vuldb.com/submit/806833third-party-advisory
https://github.com/ChatGPTNextWeb/NextChat/issues/6756exploit, issue-tracking
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.